847 free tools
All tools
Small utilities that do one thing and do it fast. Everything runs locally — nothing you type leaves your device.
Money & Finance
View all money & finance →Budget, loan, interest, and paycheck math — in seconds.
Tip Calculator
Determine the perfect tip and split the bill among any number of people. This free online calculator works on mobile with instant results and no ads.
Loan Calculator
Work out monthly payments and total interest on any loan. Enter amount, rate, and term — get a clear breakdown in seconds.
Mortgage Calculator
Calculate your real monthly mortgage cost. Get a full PITI breakdown covering principal, interest, taxes, and insurance for FHA, VA, and conventional loans online.
Compound Interest Calculator
Calculate how your money grows with compound interest. Add starting balance and monthly contributions to watch the curve — free online tool in seconds.
Car Loan Calculator
Free car loan calculator. Enter the vehicle price, down payment, APR, and term to see your monthly payment and total interest before signing.
Auto Loan Calculator
Estimate your auto loan payment, total interest, and payoff timeline in seconds. Free, mobile-friendly, no signup.
Personal Loan Calculator
Calculate monthly payments and total interest for personal loans across different APRs and terms. Free, instant online tool with no registration needed to compare options.
Student Loan Calculator
Work out your monthly student loan payment and total interest. Understand what you'll actually pay before you borrow.
Boat Loan Calculator
Estimate monthly payments and total cost for boat financing instantly online. Calculate terms up to 20 years for free with no registration required.
RV Loan Calculator
Calculate monthly RV loan payments and total interest instantly in your browser. Enter loan amount, APR, and term up to 20 years for a free breakdown.
Motorcycle Loan Calculator
Estimate motorcycle loan payments and total interest instantly. Compare terms and APRs before visiting the dealer with this free, no-sign-up online calculator.
Simple Loan Calculator
Calculate monthly loan payments using only amount, rate, and term instantly in your browser. Get clean numbers with no jargon for free and no sign-up.
30-Year Mortgage Calculator
Estimate monthly payments on a 30-year fixed-rate mortgage, including principal, interest, property tax, and insurance.
15-Year Mortgage Calculator
See what a 15-year fixed mortgage payment looks like — and how much interest a shorter term saves vs a 30-year loan.
FHA Loan Calculator
Calculate monthly payments including mortgage insurance premium instantly. Free first-time buyer tool online with no registration.
VA Loan Calculator
Estimate monthly VA loan payments instantly online. See costs with no PMI, competitive rates, and no down payment for eligible veterans, free with no sign-up needed.
Refinance Calculator
Calculate your monthly and lifetime savings from a mortgage refinance. Compare your current payment to a new option instantly — a free online calculator, no signup.
Mortgage Affordability Calculator
Calculate how much home you can afford instantly. Based on your income and debt, using the 28/36 rule lenders actually apply. Free and no sign-up required.
401(k) Calculator
Project your 401(k) balance at retirement. Includes employer match, contribution increases, and realistic market return assumptions.
Roth IRA Calculator
Estimate your Roth IRA balance at retirement assuming post-tax contributions and tax-free withdrawals. Free, instant online tool with no registration needed.
Retirement Calculator
Calculate if you're on track for retirement by entering your current balance, monthly contributions, and target age. Free, instant results with no sign-up needed.
College Savings Calculator
Calculate how much you'll save for college by enrollment time. Supports 529 plans and general accounts — free instant projection online, no registration required.
Emergency Fund Calculator
Calculate how big your fund should be and how fast you can reach it online. Enter monthly expenses and savings rate — instant, free tool without sign-up.
Savings Goal Calculator
Calculate exactly how much to save each month to reach your goal on time instantly online. Plan a vacation, emergency fund, or down payment free, no sign-up.
Monthly Budget Calculator
Enter your income and expenses to analyze your budget instantly online for free. Spot areas to save with this simple calculator that works in your browser without signup.
Paycheck Calculator
Estimate your take-home pay after federal tax, state tax, and common deductions. Fast, free, updated for 2026.
ROI Calculator
Calculate return on investment as a percentage or dollar amount by entering cost, return, and time period. Instant, free results with no sign-up needed.
Currency Converter
Convert between 15 major currencies using live, mid-market rates from the ECB for an accurate estimate. Free tool for an instant conversion, no signup.
Debt Payoff Calculator
See how fast you can clear debt with snowball or avalanche strategy. Enter balances, rates, and extra payment.
Percentage Calculator
Calculate percent of a number, percent change, and add or subtract percentages instantly. Free online tool with a clean, mobile-friendly interface for quick math.
Income Tax Calculator
Estimate income tax based on gross income, tax brackets, and filing status. Configurable brackets work for any country — free, private.
VAT Calculator
Add VAT to a net price or strip it from a gross amount instantly. Works with any rate—UK 20%, EU, or custom. A free, mobile-friendly tool with no sign-up.
Discount Calculator
Enter original price and discount — get the final price, money saved, and double discount math. Free, fast, no sign-up.
Profit Margin Calculator
Determine your gross profit margin, markup, revenue, and costs in seconds. Use this free online calculator with no account sign-up needed.
Net Worth Calculator
Calculate your net worth instantly by subtracting liabilities from assets. A free, private calculator where all math is processed in your browser with no sign-up.
Inflation Calculator
Estimate how inflation erodes value over time by entering amount, rate, and years to see future worth in today's money instantly online—no registration.
Break-Even Calculator
Find the exact unit sales volume needed to cover all fixed and variable costs online for free. Analyze new product viability or pricing decisions instantly in your browser.
IBAN Validator
Check any International Bank Account Number client-side using country-aware length and mod-97 checksums. A free, instant online validator that never sends data to servers.
NPV and IRR Calculator
Calculate Net Present Value, Internal Rate of Return, and payback period with a period-by-period PV breakdown. A free, no-sign-up tool for cash flow analysis.
Invoice Generator
Build professional invoices with line items, taxes, and notes, then print to PDF in seconds—no sign-up, no watermark, entirely free.
Hourly Rate Calculator
Convert an annual salary to a real hourly rate including overhead, taxes, and non-billable hours. A free instant tool for employees and freelancers.
Freelance Rate Calculator
Work out a realistic freelance rate — target income, billable hours, taxes, benefits, business costs — in one pass.
Pricing Calculator
Set prices with your desired margin, factoring in cost, markup, tax, and fees. Get instant breakdowns online with this free no-sign-up calculator.
Cash Flow Calculator
Add income and expense lines and see monthly, quarterly, and annual cash flow at a glance. Spot negative months early.
Startup Runway Calculator
Calculate startup runway in months, days, and a projected zero‑date from cash balance and monthly burn. Free online calculator adjusts for revenue growth — instant results.
Subscription Cost Calculator
List every subscription and see the monthly and annual total — spotting the ones to cancel has never been easier.
Expense Split Calculator
Enter who paid what and see the fewest transactions to settle up. Free online tool for trips and roommates with no registration.
Bill Split Calculator
Calculate fair shares for any dinner bill including tax, tip, and discounts online. Handle uneven orders and custom splits free in your browser.
Rent Split Calculator
Calculate fair rent shares by room size, income, or equal splits. Avoid awkward roommate conversations with this free, no-signup online tool.
Fuel Cost Calculator
Estimate fuel cost for any trip — distance, MPG, price per gallon. Great for pricing a drive vs flight.
Trip Cost Calculator
Add flights, lodging, food, and activities to see total trip cost and per-day spend. Split the budget across travelers instantly online with no sign-up.
PayPal Fee Calculator
Enter an amount and country to see the PayPal fee deducted and what you actually receive. Covers goods & services and international tiers.
Stripe Fee Calculator
Enter a charge amount and currency to see the Stripe processing fee and net amount deposited. Supports US + international cards.
Gumroad Fee Calculator
Estimate your net earnings by entering a product price to see deducted Gumroad fees, payment processing, and more. Get an instant, accurate payout with this free tool.
Etsy Fee Calculator
Calculate listing, transaction, and payment processing fees for any Etsy sale price. See your net payout instantly — free online tool, no sign-up.
eBay Fee Calculator
Calculate final value, payment processing, and total eBay fees instantly. Enter a sale price and category to see your net payout online, no sign-up.
Amazon FBA Calculator
Enter sale price, cost, and category to estimate Amazon's referral fee, FBA fulfillment fee, and your margin.
Square Fee Calculator
Calculate Square processing fees and your take‑home payout for in‑person, online, or manual charges. Free instant online calculator — see the exact fee in seconds.
Sales Tax Calculator
Calculate sales tax from pre-tax prices or reverse-calculate pre-tax from a total instantly online. Compare rates across regions free, no sign-up needed.
Shopify Fee Calculator
Calculate Shopify transaction and payment-processing fees across plans instantly online. Compare Shopify Payments vs external gateways for free, no sign-up.
Patreon Fee Calculator
Enter pledge amount and tier (Lite, Pro, Premium) to see Patreon's platform fee plus payment processing and your payout.
Rent Increase Calculator
Calculate dollar bumps, annual increases, and check rent-control caps by entering old and new rent or a percentage. Get instant results online, no sign-up required.
Apartment Affordability Calculator
Enter income and debts to see the rent you can actually afford using the 30 % rule plus debt-to-income sanity checks.
Lease vs Buy Calculator
Compare total cost of leasing a car vs financing one over the same term. Includes fees, down payment, residual value, and mileage penalties.
Gift Card Split Calculator
Split a gift card balance evenly or by custom weights to see per-person shares rounded to the nearest cent. Free online calculator with no sign-up required.
Group Gift Calculator
Plan a group gift by splitting the total cost evenly or by weighted shares, with an optional buffer. Instantly see what each person chips in with this free online tool.
Moving Cost Calculator
Estimate your entire moving budget. Covers truck rental, movers, supplies, deposits, and utility setup fees in one free, no-sign-up online tool. Get a clear number instantly.
Freelancer Tax Reserve Calculator
Calculate the % of gross income to reserve for federal, self-employment, and state taxes — monthly set-aside in one click. Free, no sign-up.
Home Equity Loan Calculator
Calculate max borrowable against your home equity, monthly HELOC payment, total interest, and LTV check in one place. Free, instant, online.
401(k) Match Optimizer
Find the contribution percentage that captures your full employer match without over-contributing. Instant online calculator — free, no sign-up needed.
Roth vs Traditional Breakeven
Compare Roth and Traditional IRA tax math — find the breakeven retirement tax rate and see which option wins for you. Free, instant, online.
Annuity Payment Calculator
Calculate periodic annuity payments from principal, rate, term, and frequency — fixed and growing annuities supported. Free, instant, online.
Dividend Reinvestment Calculator
Project DRIP portfolio growth over years — model yield, price appreciation, and monthly contributions side by side. Free, instant, online.
Tax Bracket Visualizer
See exactly how much of your income falls into each 2025 federal bracket — effective and marginal rates in one view.
FIRE Number Calculator
Determine financial independence targets based on expenses and SWR for lean, regular, and fat FIRE. Free online calculator with no sign-up.
Net Salary to Gross Calculator
Calculate the gross salary needed to achieve your desired net take-home pay. Accounts for federal taxes, FICA, and state deductions instantly and free online.
Cost of Living Adjuster
Calculate equivalent salary between two cities based on COL indices, plus the absolute and percent delta. Free online calculator for 2026 — no signup required.
Receipt Generator
Generate a cash or sales receipt with your business details, line items, and tax totals. Save as PDF or print instantly — a free online tool with no signup.
Quote Generator
Generate a professional sales quote with line items, tax, and terms. Print or save as a PDF instantly in your browser — no signup required.
Purchase Order Generator
Create a complete purchase order with buyer, vendor, line items, and approval signature line in seconds. Free browser tool with no sign-up.
Bill of Sale Generator
Create a legally sound personal property bill of sale with an as-is clause instantly. Fill in your state, signatures, and item details online with no sign-up.
Pay Stub Generator
Generate a pay stub with earnings, YTD totals, federal/state withholding, FICA, and net pay. Print-ready.
Packing Slip Generator
Packing slip / delivery note with SKU, description, ordered vs shipped quantity — no prices. Print-ready.
Promissory Note Generator
Create a loan agreement with principal, interest, payment terms, and late fees in seconds. Free online generator tool with no registration required.
Closing Cost Estimator
Itemized home-purchase closing costs: origination, title, appraisal, escrow, transfer tax, prepaids. Shows total as % of loan.
PMI Calculator
Estimate your private mortgage insurance monthly cost, total paid, and months until 78% LTV auto-cancels. Free instant calculator with no sign-up needed.
Property Tax Calculator
Estimate your annual and monthly property tax using state effective rates and compare against US benchmarks. Free online calculator, no sign-up required.
Mortgage Payoff Accelerator
Calculate how adding $100 or more to monthly payments can slash your mortgage timeline and total interest. A free, instant, no-sign-up online tool to weigh your options.
Rental Yield Calculator
Calculate gross and net rental yield for any investment property, factoring vacancy, expenses, and PM fees. Get tier-labeled results online with no sign-up.
Cap Rate Calculator
Calculate commercial-style capitalization rate as NOI divided by price instantly online. See tier labels and property-only return for free in your browser with no signup needed.
Cash-on-Cash Return Calculator
Annual cash flow / total cash invested. Factors down payment, closing, rehab, mortgage payment. Break-even month included.
House Flip ROI Calculator
Calculate fix-and-flip profit, ROI, and check the 70% rule instantly. Includes holding and selling costs for a free online analysis with no sign-up.
Airbnb Revenue Estimator
Short-term-rental revenue from nightly rate, occupancy, cleaning fees. Platform and PM fees factored. Net annual income.
Road Trip Planner
Calculate fuel, hotels, food, and attraction costs for any US road trip. See days on road and per-person splits instantly online, no sign-up.
Travel Budget Calculator
Calculate total travel costs including flights, hotel, and daily expenses. See a per-person breakdown instantly with this free, no-sign-up calculator.
Travel Insurance Cost Estimator
Get a rough insurance quote based on trip cost, age, and coverage type. Compare CFAR vs comprehensive plans instantly online for free.
Creator Tax Reserve Calculator
Calculate the exact percentage of your creator income to reserve for taxes, including self-employment and estimated payments. Free, instant results.
Crypto DCA Calculator
Calculate your dollar-cost-average crypto projection and compare it to a lump-sum investment to see the difference in value. Free, instant results.
Crypto Capital Gains Calculator
Calculate short-term vs long-term capital gains tax on a crypto sale using current federal brackets. Free, instant, no sign-up. Not tax advice.
NFT ROI Calculator
Calculate your NFT return on investment accurately. Accounts for gas fees, platform cuts, and creator royalties in one free, instant, no-sign-up online tool.
Real Estate Crowdfunding Yield Calculator
Calculate projected returns from real estate crowdfunding and compare them directly to the S&P 500. A free online tool with instant results and no signup.
Stock Portfolio Diversification Checker
Check concentration risk in your portfolio — flags >10% positions, >50% individual stocks, and >5% crypto. Free online analyzer gives instant feedback in your browser.
FICA Tax Calculator
Estimate Social Security and Medicare taxes for W-2 or self-employed income with 2026 rules. Free online tool, no sign-up.
Subscription Fatigue Auditor
List your subscriptions, mark each keep/review/cancel. Auto-flags low-use services and projects yearly savings if you act on the kill list.
Low-Buy Year Tracker
Log every purchase, mark needs vs. wants, and monitor monthly budgets to curb lifestyle creep. Free, no-signup tool to track your spending in seconds.
Calculator
Perform quick add, subtract, multiply, and divide calculations with full keyboard support instantly online. Use this free, no-ads basic calculator in your browser with no downloads.
Percentage Change Calculator
Calculate the percent change between two values with direction indicators and absolute delta instantly. Free, no-sign-up tool right in your browser for finances.
Amortization Calculator
Full amortization schedule for any fixed-rate loan. Principal vs interest split per payment, total interest, CSV export.
Scientific Calculator
Solve expressions with trigonometry, logarithms, sqrt, pi, and e instantly online. Use the free scientific calculator with history and DEG/RAD toggle.
Automotive
View all automotive →Car loans, fuel economy, depreciation, insurance, tires, and the full cost of owning a vehicle.
Car Affordability Calculator
Estimate the maximum car price you can afford based on your income using four rules instantly online. Consider the 20%, 15%, 10%, and DTI-based methods for free with no registration.
Car Payment Calculator
Monthly loan payment with sales tax, trade-in, and down payment. Includes total interest + amortization.
Gas Mileage Calculator
MPG from miles + gallons, plus cost per mile and monthly fuel cost. Comparison table across 7 MPG tiers.
Car Depreciation Calculator
Estimated car value after N years using industry-standard depreciation curves. Higher miles accelerate.
Total Cost of Ownership Calculator
Estimate total vehicle expenses over five years including loan, fuel, and insurance. Get a per-mile breakdown instantly online with no registration.
Fuel Economy Converter
MPG (US) ↔ MPG (UK) ↔ L/100km ↔ km/L. All four values side by side with efficiency tier labels.
Car Insurance Quote Estimator
Rough annual and monthly premium by state, age, coverage, credit, record, and vehicle class.
Tire Size Converter
Parse a metric tire size like 225/65R17 into overall diameter, width, and circumference. Get imperial equivalents online in your browser for free.
Tire Pressure Lookup
Look up typical cold PSI for your vehicle type instantly. Includes the door-jamb rule and altitude notes with no sign-up required for free access.
VIN Decoder
Decode a 17-character VIN instantly to see the country of manufacture, brand, model year, plant code, and serial. This free tool requires no registration.
License Plate Format Lookup
US state license plate format reference. Standard pattern, max length, personalized and commercial rules.
Oil Change Interval Calculator
Calculate the recommended oil change interval based on oil type, driving habits, and engine age. Get your next service date free and instantly online.
Repair or Replace Calculator
Calculate whether to repair or replace your car using 50% and 75% value rules plus a 2-year cost comparison. Free, instant online advice with no sign-up.
EV Charging Cost Calculator
Compare home, DC fast charging, and a 30 MPG gas car at $3.50/gal instantly. Find time and cost savings free, no sign-up required.
Road Trip Fuel Stops Calculator
Calculate how many fuel stops you need on a long drive, at which mile markers, and total gallons and cost. Free instant planner with no sign-up.
EV Range Estimator
Get accurate range estimates accounting for cold weather, highway speeds, and HVAC use online instantly—no signup needed.
Home & Life
View all home & life →A calmer, cleaner, better-run home life — one habit at a time.
Cooking Converter
Convert between cups, tablespoons, grams, and ounces for flour, sugar, butter, and more — ingredient-aware for metric or US. Free online, no signup needed.
Recipe Scaler
Scale any recipe ingredient list up or down by a custom ratio. Fractions and decimals are fully supported in this free online tool with no signup required.
Packing List Generator
Generate a packing list based on trip length, weather, and activities. Check items off as you pack — stays with you.
Paint Gallons Calculator
Gallons of paint for any room — factors wall count, coats, door/window subtraction, and spread rate.
Wallpaper Roll Calculator
Rolls needed for any room — factors roll width, length, pattern repeat, and waste allowance.
Lawn Fertilizer Calculator
Pounds of fertilizer for any lawn — based on sqft, nitrogen target, and bag N percentage.
Furniture Fit Calculator
Does that sofa fit? Check clearance, walkway, and rotation options before the delivery truck arrives.
Tile Count Calculator
Estimate the exact number of tiles and boxes needed for your project by inputting tile size, waste allowance, and box count online in seconds for free.
Rental Application Generator
Generate a printable rental application form with fields for applicant, employment, references, pets, and background check authorization. Instant, no sign-up.
HOA Fee Impact Calculator
Calculate how much buying power your monthly HOA fee consumes by converting it to a loan-amount equivalent. Instant, free, and no registration.
Flight Time Calculator
Calculate great-circle flight durations with taxi buffer for 50+ airports instantly. Distance in km/miles, free online.
Layover Risk Checker
Is your connection too tight? Tier-based check by airport size, international flag, and customs requirement.
Passport Expiry Checker
Is your passport valid enough for your trip? Handles the 6-month rule for most countries.
Tip by Country Lookup
Check standard tipping practices for restaurants, taxis, and hotels worldwide. Includes an instant bill-amount tip calculator free online with no download.
International Data Cost Estimator
Estimate carrier roaming vs eSIM vs local SIM costs for any trip instantly online—no registration, just select destination and length for free comparison.
Flight Carbon Footprint Calculator
Calculate kg CO2 per passenger by flight distance and cabin class — see real-world equivalents and trees to offset. Free tool, instant, no sign-up online.
Schengen 90/180 Tracker
Track your days in the Schengen area under the rolling 180-day rule free online. Check pass or fail for any planned entry instantly, no registration needed.
Airbnb Cleaning Fee Fairness Checker
Is that $200 cleaning fee reasonable? Tier verdict + effective per-night rate + amortization over stay.
Daylight Savings Lookup
Is DST active at a city on a specific date? Covers US, EU, southern-hemisphere rules, and no-DST locations.
Best Time to Book Flights Calculator
Predict the optimal booking window for domestic and international flights instantly. Find your fare sweet spot with this free online calculator.
Wedding Budget Calculator
Full wedding budget by region and guest count. 11-category split, per-guest cost, tier label.
Wedding Guest List Splitter
Split wedding guest slots between families fairly — even, contribution-based, or custom allocation. Free tool, instant results, no sign-up, browser-only.
Seating Chart Generator
Generate a printable seating chart online for free while keeping groups together. Assign guests to tables with overflow warnings instantly, no sign-up.
Wedding Cake Servings Calculator
Estimate cake size for your number of guests using Wilton serving charts instantly online. Get tier configuration recommendations for free in your browser with no signup needed.
Bar Quantity Calculator
Alcohol for any party. 1-drink-per-hour baseline adjusted for drinker type, by beer/wine/spirits split.
Catering Cost Estimator
Full catering cost by service style, cuisine tier, and guest count. Service fees, tax, bartender included.
Save-the-Date Timing Guide
Calculate save-the-date, invitation, and RSVP deadlines based on your wedding date instantly online. Plan your final headcount free, no registration needed.
Party Food Quantity Calculator
Food quantities for any party. Appetizers, mains, sides, drinks with grocery cost estimate.
Wedding Registry Prioritizer
Build a wedding registry with 5 price tiers ($25 to $250) sized to guest count — must-have, nice-to-have, stretch. Free tool, instant, no sign-up online.
RSVP Tracker
Track accept, decline, and pending counts, response rates, and meal tallies from a text guest list. Get instant results online, no sign-up required.
USDA Hardiness Zone Lookup
Look up your plant hardiness zone instantly by ZIP code. Get min temperature ranges and plant recommendations online for free, with no registration needed.
Frost Date Lookup
Last spring frost + first fall frost by USDA zone. Growing season length and safe planting dates.
Planting Calendar by USDA Zone
Find when to start and direct-sow over 20 crops by your USDA zone. Get a full harvest estimate table instantly with this free online tool.
Seed Spacing Calculator
Calculate how many plants fit a bed and how many seeds to buy instantly online. Get row and square-foot garden layouts free, no registration needed.
Garden Bed Soil Volume Calculator
Cubic yards / bags of soil for any raised bed. Bulk vs bagged cost comparison with 10% buffer.
Compost Ratio Calculator
Calculate the green-brown ratio for a healthy compost pile instantly. See pile health tier, what to add, and a do-not-add list — free online, no signup.
Companion Plant Checker
Check 20 common garden vegetables for good or bad companion pairings instantly. Includes Three Sisters callout — free online tool with no signup needed.
Mulch Cubic Yards Calculator
Calculate mulch volume in cubic yards for any area instantly. Compares bulk versus bagged costs with coverage depth guidelines using this free online tool.
Raised Bed Cost Calculator
Calculate the lumber, soil, and hardware cost for a raised bed. Compare cedar, pine, and metal materials instantly online with no signup needed.
Plant Watering Schedule
Create a custom watering schedule in seconds based on plant type, soil, and climate conditions. No registration needed for this instant tool.
Concrete Cubic Yards Calculator
Calculate cubic yards of concrete for slabs, footings, columns, or stairs — plus bag vs bulk cost. Free tool, instant results, no sign-up, browser-only.
Deck Board Count Calculator
Calculate boards, linear feet, and joists for your deck — with minimal-waste length picks to cut leftovers. Free tool, instant, no sign-up, browser-only.
Stair Calculator (Rise, Run, Stringer)
Calculate step count, riser height, total run, and stringer length from total rise. IRC code warnings included. Free online stair calculator works instantly — no sign‑up.
Drill Bit Size Lookup
Find pilot and anchor hole bit sizes for wood screws, machine screws, and wall anchors online. Instant results, free to use without registration.
Screw Size Converter (Gauge to Metric)
Convert screw sizes between gauge, metric, and imperial diameters instantly online. Use the free converter for #6-#14, M3-M8 sizes with no download.
Saw Blade Tooth Count Guide
Find the recommended tooth count and blade type by material and cut style instantly online. Get ripping, crosscut, or combo guidance free, no download.
Rebar Spacing Calculator
Calculate the rebar linear feet, tie wire, and total cost for a slab with a lap splice reminder. A free instant calculator that works entirely in your browser.
Fence Post Calculator
Estimate posts, panels, concrete bags, and total cost for any fence run instantly online. Free tool with no sign-up required.
Insulation R-Value Calculator
Determine target R-value and thickness across 5 materials by IECC zone instantly online. Free, no sign-up tool for home insulation planning.
Roof Pitch Calculator
Calculate roof pitch in X/12 format, angle in degrees, percent grade, and shingle suitability. Free online calculator with instant results, no sign-up.
Solar Panel Payback Calculator
Calculate solar ROI, payback period, and 25‑year savings including 30% federal tax credit and state rebates. Free online calculator with instant results — no registration.
Utility Bill Calculator
Calculate and track all household utility bills in one free online tool. Benchmark electric, gas, water, internet, and more against US averages instantly with no sign-up.
Smart Home Cost Estimator
Estimate full smart home install costs including cameras, locks, thermostats, lighting, and labor. Free online estimator compares DIY vs pro pricing in seconds.
Reusable vs Disposable Savings Calculator
Calculate lifetime savings from switching to reusable products like water bottles and coffee cups. Get free, instant comparisons in your browser, no sign-up.
Compost Bin Size Calculator
Calculate the right compost bin size for your household — weekly waste volume plus tumbler vs pile picks. Free tool, instant, no sign-up, browser-only.
Heat Pump Savings Calculator
Calculate heat pump savings over gas, oil, or propane. Includes rebate credits and payback math for an instant, free estimate with no registration required.
Electricity Cost Calculator
Calculate what an appliance costs to run with wattage and kWh rates online. Instant daily, monthly, and yearly estimates — free, no sign-up needed.
Distance Between Cities
Great-circle distance, approximate flight time, and live time-zone difference between any two world cities. 110+ cities, Haversine formula, no signup.
Productivity
View all productivity →Timers, planners, and routines for focused work.
Pomodoro Timer
Boost productivity with a customizable 25/5-minute focus timer in your browser. Use it free and instantly with no registration or download required.
Countdown Timer
Create a free, full-screen countdown timer for any event and hear an alert when time runs out. Works instantly, no sign-up, no download.
Online Stopwatch
Track time with lap splits and millisecond precision. Free online stopwatch with a clean full‑screen view — works on any device instantly, no download needed.
Online To-Do List
Create an instant to-do list with no sign-up required. Add, tick off, and reorder tasks, all saved directly in your browser for complete privacy online.
Habit Tracker
Monitor your daily habits for 30, 60, or 90 days and watch your streak grow. All data saves privately in your browser, with no sign-up required for this free tracker.
Reading Time Estimator
Estimate the reading time for any text in seconds based on average speed. Paste and go with this free, instant online tool — no signup or download required.
Meeting Cost Calculator
Input attendee salaries and meeting duration to see the total cost in dollars instantly. A free, no-signup calculator to estimate budget impact in seconds.
Time Zone Converter
Translate a time between any two time zones with automatic DST handling. Ideal for scheduling across teams, available instantly in your browser.
Public Holidays Lookup
Find every public holiday by country and year instantly with live data. Free online lookup tool, great for planning time off with no registration.
Priority Matrix
Sort your tasks into urgent/important quadrants and instantly see a Do, Decide, Delegate, Delete list. Free mobile-friendly tool, no sign-up.
Deadline Calculator
Add business days or working hours to a start date and get the actual deadline — holidays excluded.
Lunch Break Calculator
Input start/end times and lunch pay status to see net work hours, overtime, and weekly totals. An instant, no-signup calculator for accurate time tracking.
Daily Planner
Plan your daily schedule with time-boxed blocks for meetings, deep work, and breaks, then print it out. A free online planner with no registration.
Weekly Planner
Plan a 7-day week with top priorities, recurring routines, and daily blocks. Print or keep open in a tab.
Meeting Agenda Builder
Draft a structured agenda with topics, owners, and minutes, then copy it for email or calendar invites. A free, no-signup builder that works in seconds online.
Signature Drawer
Draw your signature with a mouse or finger and download it as a transparent PNG instantly online. Paste into PDFs or docs for free, no registration.
Standup Notes Template
Generate a clean standup update covering yesterday, today, and blockers. Copy markdown or Slack‑friendly output in one click. Free online template works instantly — no registration.
Weekly Goal Tracker
Set 3 weekly goals, log daily progress, and review on Friday. Saves to your browser — no account.
Meeting Minutes Template
Fill in attendees, agenda, decisions, and action items, then export clean Markdown or plain text. An instant, free online template with no signup needed.
Project Brief Template
Outline goals, scope, stakeholders, timeline, and metrics in a markdown-ready template. Free online brief builder with no sign-up and instant export.
Meeting Time Suggester
Instantly see viable meeting windows by overlapping working hours across three time zones. A free, no-signup productivity tool that finds slots in seconds online.
Daily Affirmation Generator
Pick a theme — confidence, calm, productivity, growth — generate a fresh affirmation every tap. Free, instant, browser-only, no sign-up needed today.
Kanban WIP Calculator
Suggested WIP limits per column based on team size, cycle time, and focus factor — uses Little's Law.
Time-Block Planner
Generate a structured daily schedule by setting start, end, block size, and break cadence. Tally total focus hours online with no registration needed.
Typing WPM to Words Per Hour
Convert typing WPM into words, pages, chapters, and books per day, week, and year — factors productivity. Free, instant, browser-only calculator.
Dopamine Detox Planner
Create a personalized detox plan online. Pick length and strictness to get allowed/blocked lists and a checklist. Instant, no registration required.
Online Clock
Check the time with a live digital clock featuring a 12/24-hour toggle and seconds display. A free tool that reads from your device clock and works offline.
Days Between Dates
Count days, weeks, months, and years between any two dates — with a clean Y/M/D breakdown. Free, browser-only.
World Clock
Live multi-timezone clock. Add any city, save your zones to localStorage. Auto-handles DST. Free.
Online Stopwatch
Time any activity with millisecond precision. A free online stopwatch with lap times that works entirely in your browser with no download or sign-up needed.
Online Timer
Set a free online countdown timer with a loud audible alarm. Configure hours, minutes, and seconds that will run even in a background tab with no sign-up.
Time Calculator
Perform quick addition or subtraction of two time values in HH:MM:SS format. Supports negative results and works instantly in your browser for free.
Online Notes
Save your thoughts on a private browser scratch pad. Features auto-save and download as a .txt file for free, with no account or sign-up needed in seconds.
Flashcards
Create and review flashcard decks that save to your browser instantly. Free online study tool with no account or sign-up needed.
File & Format Converters
View all file & format converters →PDFs, images, data formats — converted in your browser, offline-safe.
Color Converter
Convert any color between HEX, RGB, and HSL formats. Paste a code or tweak channels and see updates live — free online tool with no download required.
Unix Timestamp Converter
Convert Unix epoch seconds or milliseconds to a human-readable date and vice versa. This timezone-aware tool works offline for free, with no sign-up.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal all at once. A clean, ad-free, instant online converter for developers and students alike.
CSV to JSON
Convert your CSV data into clean, well-formatted JSON instantly. This free tool handles quoted fields and custom delimiters, no upload required.
YAML ↔ JSON Converter
Quickly convert YAML to JSON or JSON to YAML online. Paste on one side and copy the result instantly for configs or data — free tool that runs right in your browser.
HTML to Markdown
Paste HTML and get clean Markdown with preserved headings, lists, links, and code blocks. Ideal for migrating blogs instantly with this free, no-sign-up online tool.
Image Format Converter
Swap between JPG, PNG, and WebP formats instantly in your browser for quick edits before sharing. A free, online tool with no upload required and no sign-up needed.
Image Resizer
Scale JPG, PNG, or WebP photos by exact pixels or percentage while keeping the aspect ratio. A free, instant online resizer that works offline with no signup required.
Image Compressor
Reduce JPG file sizes with a quality slider and download optimized images for emails or websites. A free, instant online compressor that works in your browser with no signup.
SVG to PNG
Convert SVG to PNG at any resolution. Pick the output size, keep transparent background. 100% client-side.
PDF to Text
Extract plain text from PDFs like reports, books, and receipts instantly. Free, online tool that processes all content right in your browser with no upload needed.
PDF to JPG
Convert each PDF page into a separate JPG image. Free, instant browser tool with no watermarks, uploads, or sign-up required — just drop your file and save images.
JPG to PDF
Merge multiple images into a single PDF with reordering and rotation, all in your browser instantly—free, no-sign-up tool with local processing.
Merge PDF
Drop several PDFs, reorder pages, and save a single merged file instantly with no uploads, accounts, or watermarks. Free, browser-based PDF merger in seconds.
HEIC to JPG
Convert iPhone HEIC photos to JPG instantly with no uploads. Batch process multiple files and download them free in seconds, no sign-up required.
Split PDF
Split a PDF into individual pages or custom ranges instantly. Free, browser-only tool with no uploads or watermarks — get your split files in seconds with no sign-up.
PDF Metadata Viewer
Inspect hidden PDF metadata including author, title, producer, and creation dates instantly. Free, online tool that runs directly in your browser with no uploads.
PDF Metadata Remover
Strip author, title, producer, and hidden metadata from PDFs before sharing. Free, browser-only tool with no sign-up — your file stays private and secure.
PDF to Long Image
Convert your PDF into a single tall PNG by stitching all pages together vertically. Free, no-sign-up tool that works instantly in your browser for easy sharing.
PDF Watermark
Stamp text watermarks across every page of a PDF with custom position, opacity, and color. Free, no-sign-up tool that processes your file instantly in browser.
PDF Organizer
Organize PDF pages visually: reorder, rotate, and delete pages instantly. Free, no-sign-up tool that processes your file entirely in your browser with no uploads.
PDF Page Numbers
Add page numbers to any PDF with custom position, font size, and starting number. Free, instant tool with no account or sign-up needed — works right in your browser.
PDF Crop
Crop margins off every page of a PDF in one click. Ideal for cleaning up scans. Runs entirely in your browser.
WebP to JPG
Convert WebP images to JPG instantly. Batch many files at once, pick quality, download — all done in your browser.
Image Cropper
Trim images to custom boxes, squares, or fixed ratios like JPG, PNG, and WebP instantly. This free, browser-only tool works offline with no watermarks or sign-up needed.
Color Extractor
Extract dominant colors from any image as a palette in HEX, RGB, and HSL. Copy with one click — all processing happens instantly in your browser, no upload.
GIF Maker
Turn a stack of images into a smooth animated GIF. Set frame delay, loop, and size. 100% in-browser, no uploads.
TSV to CSV Converter
Transform tab-separated values into comma-separated format with automatic handling of quoting and line endings. Works instantly in your browser for free.
Image to Text (OCR)
Convert screenshots, scans, or photos to text using in-browser Tesseract OCR. No upload, instant results, and completely free online.
Handwriting to Text
Transform a photo of your handwritten notes into editable text with in-browser OCR. Works best on clear block letters. Free, instant tool with no sign-up needed.
Image to Base64
Upload or paste an image to generate its Base64 data URL for CSS, emails, and embeds. Free, instant conversion with no sign-up required.
Base64 to Image
Paste a Base64 string or data URL and preview it as an image. Download the decoded PNG or JPG instantly.
EXIF Viewer
View camera make, GPS location, date, and all EXIF data from any photo instantly in your browser—free, no sign-up.
EXIF Remover
Remove GPS, camera, and all EXIF data from JPG/PNG photos before sharing. Works instantly in your browser, no download needed.
Passport Photo Maker
Crop your photo to the exact passport size for US, UK, Schengen, India, and Canada. Export at 300 DPI print-ready.
Profile Pic Circle Cropper
Create a perfectly cropped circle avatar with transparent corners instantly in your browser. Free tool for profile pictures, no download required.
Image Blur & Censor
Blur or black-out parts of an image, like faces or license plates, by dragging rectangles and exporting as PNG. A free, instant tool that runs in your browser with no signup.
Photo Collage Maker
Create photo collages by dropping up to 9 images into a grid with custom spacing and export one image. Free, instant tool with no sign-up or watermarks in browser.
PDF Editor
Click-to-place text, signatures, images, shapes, highlights, and checkmarks. Drag to reposition, save a clean PDF. No upload, no account, no watermark.
Rotate PDF
Rotate entire PDFs or individual pages by 90°, 180°, or 270° instantly. Free online tool with no uploads, accounts, or watermarks — just rotate and save in seconds.
Compress PDF
Reduce PDF size by downsampling embedded images and stripping unused objects. Runs in-browser — your file never leaves.
Unlock PDF
Unlock PDFs by removing owner or user passwords from files you have rights to. Free, instant tool that works entirely offline in your browser with no uploads needed.
Protect PDF
Encrypt a PDF with a password so only recipients can open it. Free, instant protection in your browser with no uploads, registration, or downloads needed.
PDF to PNG
Convert every PDF page into a lossless PNG image without watermarks or uploads. Free, instant tool that renders everything directly in your browser with no sign-up.
Redact PDF
Redact PDFs by drawing black rectangles over sensitive info and flattening the result. Free, no-sign-up tool that processes your document safely in your browser.
Extract Images from PDF
Pull every embedded image out of a PDF and save each one as a PNG. No upload, no account.
Flatten PDF
Flatten filled form fields, highlights, and annotations into the page so they can't be edited. Runs entirely in your browser.
Invert PDF Colors
Flip the colors of a PDF to save a high-contrast or dark-mode version. Good for late-night reading or e-ink displays.
Flip Image
Mirror images horizontally or vertically for PNG, JPG, or WEBP files and save them locally. A free, instant online tool that runs entirely in your browser with no upload.
Rotate Image
Turn any image by 90°, 180°, or a custom angle while preserving PNG transparency. This free, instant tool runs in your browser with no sign-up or download needed.
Add Border to Image
Put colored borders around any image with adjustable pixel thickness, color, and corner radius online. A free, instant browser tool that requires no download or registration.
Round Image Corners
Add soft, rounded corners to any image with a pixel radius and export as a transparent PNG. A free, instant online tool that works in your browser with no signup required.
PNG to JPG
Convert your PNG images to JPG format with a quality slider and replace transparency instantly. Free browser-based tool requires no registration.
JPG to PNG
Change JPG images to PNG for transparency or editing without recompression instantly in your browser—no sign-up, free online converter.
PNG to WebP
Reduce PNG file sizes by 25-35% while keeping visual quality. Convert to WebP with a quality slider online, free and with no sign-up.
WebP to PNG
Convert WebP images to PNG when you need broader compatibility or lossless output.
Clothing Size Converter US EU UK JP
Convert men's and women's clothing sizes across US, EU, UK, Japan, and Australia — all categories covered. Free online tool, no sign-up needed.
Shoe Size Converter
Convert men's, women's, and kids' shoe sizes between US, UK, EU, and JP instantly online. Get foot length in cm free with no registration needed.
Ring Size Converter US UK EU JP mm
Convert ring sizes between US, UK, EU, and Japan, plus see circumference in mm. Includes home measurement tips, all free with no registration.
Bra Size Converter
Convert bra sizes between US, UK, EU, and AU systems instantly online for free. Includes sister-size explanations to help you find the right fit in seconds without registration.
Watch Case Size Guide
Match watch case diameter to wrist circumference. Strap width and lug-to-lug guidance.
Luggage Weight & Size Checker
Verify baggage allowances across 30+ airlines and classes. Find pack-within weight targets and avoid excess fees with this free online luggage weight checker, no signup needed.
Jeans Waist Size Converter
Convert jeans waist size between US, EU, UK, and cm for men and women — includes a quick measurement guide. Free instant tool, no sign-up required.
Hat Size Converter
Convert your hat size between US, UK, and EU formats using head circumference in centimeters. Find your perfect fit instantly with this free, no-sign-up online tool.
Glove Size Converter
Convert glove sizes instantly using palm circumference. Switch between US, EU, and letter formats with material-fit advice. Free, no sign-up online converter.
Kids Clothing Size by Age + Height
Find children's clothing size from age, height, and weight — height is the primary signal. Free instant chart for parents, no sign-up or download.
XML to CSV Converter
Transform XML data into a downloadable CSV file instantly in your browser. Auto-detects row elements and flattens nested attributes — completely free with no upload needed.
PDF OCR to Text
Convert scanned and handwritten PDFs to text using Tesseract.js directly in your browser. Free, instant extraction with no uploads, sign-up, or API key required.
CSV to Excel Converter
Convert CSV to a real Excel file (.xls SpreadsheetML 2003 format) that Excel, Google Sheets, and LibreOffice all open natively. No upload, no signup
PDF Table Extractor
Extract tables from PDF pages into CSV format using pdf.js in your browser. Free, instant conversion with no uploads — works on native PDFs for quick analysis.
Markdown to PDF
Transform Markdown into a clean, print-ready PDF complete with headings, lists, and code blocks. No upload or signup — instant, free conversion directly in your browser.
PDF Page Range Extractor
Extract specific pages from a PDF into a new file using pdf-lib. Free, browser-only tool with no upload or sign-up required — get your pages in seconds.
Roman Numerals Converter
Convert between Arabic numbers (1-3999) and Roman numerals, with validation rejecting malformed forms. Free instant tool, no registration required.
Binary Converter
Edit any field to instantly transform numbers across all four bases in your browser. Use this free, ad-free live conversion tool with no sign-up.
Text to Binary Converter
Convert any text to/from binary using UTF-8 codepoints. Multi-byte chars (emoji, non-Latin) handled correctly.
Timestamp Converter
Transform Unix timestamps to ISO 8601 dates and back instantly. Auto-detects milliseconds vs seconds for precise conversion with no sign-up.
HEIC to PNG
Convert iPhone HEIC photos to lossless PNG right in your browser. Pixel-perfect output for editing pipelines and archival. Batch supported, no uploads.
HEIC to WebP
Convert iPhone HEIC photos to WebP — 25-35% smaller than JPG at the same quality. Universal modern-browser support. Batch in-browser, no uploads.
HEIC to PDF
Combine iPhone HEIC photos into a single multi-page PDF. Reorder pages, pick A4/Letter or fit-to-image. Browser-only, no uploads, no watermarks.
Health & Fitness
View all health & fitness →Quick calculators and plain-English habit guides.
BMI Calculator
Input your height and weight to see your BMI score and health category online. Understand your result in plain English with this free calculator.
Calorie Calculator
Estimate your daily calorie needs based on age, activity, and goals like lose, maintain, or gain instantly online. Use this free and private tool in your browser with no registration.
Daily Water Intake Calculator
Calculate how much water you should drink per day based on weight, activity, and climate. Liters and ounces.
Ideal Weight Calculator
Calculate your ideal weight using Devine, Robinson, and Miller formulas for honest, no-fad ranges. This free online tool provides instant results with no registration.
Running Pace Calculator
Calculate pace, finish time, or distance for any run in km or miles. Perfect for 5K to marathon training, with free, instant results and no sign-up.
Macro Calculator
Get your daily protein, carb, and fat targets based on calories and goals. This free, instant macro calculator works online with no signup required.
BMR Calculator
Estimate your basal metabolic rate with the Mifflin-St Jeor formula online for free. Calculate calories burned at rest instantly in your browser without signup.
Body Fat Calculator
Estimate body fat percentage using the U.S. Navy tape method for free in your browser. Enter waist, neck, and hip measurements to get instant results without signup.
Pregnancy Calculator
Estimate your due date, current week, and trimester from your last period. Instantly get private results in your browser with no sign-up needed.
Ovulation Calculator
Find your estimated ovulation date and fertile window from the last period and cycle length. Free, private, 100% in-browser.
Steps to Calories Calculator
Convert daily walking steps into calories burned using weight, stride, and pace. Free online fitness calculator with instant results — no registration required.
Smoking Cost Calculator
Calculate monthly, yearly, 10‑year, and lifetime smoking costs based on packs per day. Free instant online calculator — a gut check to help you quit, no sign‑up.
Alcohol Unit Calculator
Convert any drink to standard drinks (US) or units (UK). Track a week's intake against low-risk guidelines.
Caffeine Intake Calculator
Log coffee, tea, soda, and energy drinks to see your total daily caffeine in mg instantly online. Compare against the 400 mg safe limit for free in your browser with no registration.
Sleep Cycle Calculator
Calculate optimal bedtimes and wake‑up times aligned with 90‑minute sleep cycles. Free online tool with instant results — no sign‑up required.
Heart Rate Zone Calculator
Calculate your max heart rate and five training zones for recovery, aerobic, tempo, threshold, and VO2 max in one go. Free, instant, and no sign-up needed.
Protein Intake Calculator
Find your optimal daily protein grams based on weight, activity, and goal (cut, maintain, bulk). Get instant free results online with no sign-up.
Carbohydrate Calculator
Calculate daily carb grams from calories, activity, and diet (balanced, low-carb, keto). Pairs with the macro calculator.
Fiber Intake Calculator
Get recommended grams and tips for whole foods instantly online. Free nutrition tool works in your browser with no sign-up.
Fasting Timer
Start a free fasting timer showing elapsed, remaining, and eating window for any schedule. No sign-up, works instantly in your browser.
Meal Prep Calculator
Enter your weekly macros and food preferences to get a portioned shopping list instantly. A free online meal prep calculator that works in seconds with no signup.
Water Intake by Body Weight
Calculate daily water intake from body weight using the half-ounce-per-pound rule plus activity and climate adjustments.
One-Rep Max Calculator
Estimate your 1RM from any set of reps using the Epley, Brzycki, Lombardi, and Mayhew formulas. A free, no-sign-up tool for serious lifters online.
Ovulation Window Calculator
Calculate your fertile window, likely ovulation day, and next period from last period date and cycle length. Free, instant, no sign-up needed.
Electrolyte Replacement Calculator
Water, sodium, and potassium targets for endurance training, tuned to body weight, sweat rate, and climate. Free online calculator, instant, no sign-up.
Vitamin D Dose Calculator
Calculate your daily vitamin D IU for maintenance or deficiency repletion — accounting for age, weight, and sun exposure. Free online, no sign-up.
Calories Per Macro Estimator
Get total kcal from protein, carbs, fat, and fiber plus percent breakdown instantly online. Catch low-protein diets quickly with this free tool in your browser without registration.
Jet Lag Recovery Calculator
Estimate recovery days based on timezones crossed and travel direction — eastward is tougher than west. Free online calculator, instant, no sign-up.
Vegan Protein Calculator
Calculate your daily plant-based protein target and get meal ideas from tofu, lentils, and quinoa instantly online. Free to use with no registration required.
Resistance Band Workout Planner
Plan a weekly resistance band split with exercises by goal, days per week, and fitness level — beginner to advanced. Free, instant, no sign-up.
Biohacking Supplement Tracker
Track your biohacking supplement stack cost monthly and yearly, with interaction cautions and staple callouts. Free, browser-only, no sign-up tool.
Gym Membership ROI Calculator
Analyze your cost per visit and break-even point to decide if your gym membership is worth it. Estimate yearly savings instantly with this free, no-sign-up tool.
Eye Strain Break Calculator
Use a free timer and daily screen-hours planner to prevent digital eye strain. Works instantly in your browser with no sign-up.
Zone 2 Heart Rate Calculator
Find your optimal zone 2 cardio heart rate online using Karvonen, Maffetone, or max-HR methods. Based on longevity research — free calculator with instant results, no signup.
VO2 Max Estimator
Estimate your VO2 max online using the Cooper 12-minute run, Rockport walk, or resting heart rate method. Free tool with age and sex norms for instant context.
Cold Plunge Protocol Builder
Build a personalized cold plunge protocol by goal and experience level. Get temperature, duration, frequency, and timing instantly with safety notes online.
Pickleball Rating Calculator
Estimate your pickleball rating from 2.0 to 7.0 DUPR-scale using recent match results and level descriptions. Free, instant online tool with no sign-up needed.
Step Count Target Calculator
Calculate a daily step target based on age, goal (longevity, weight loss, fitness, athlete), and activity level. Free online calculator gives instant personalized numbers — no sign‑up.
Run Club Distance Calculator
Calculate distance, pace, and energy burn for run-club sessions by level, target pace, and duration. Includes social run etiquette tips, free and online.
Sauna Protocol Calculator
Build a personalized sauna protocol by goal and experience level instantly online. Set rounds, duration, and frequency based on free KIHD longevity data.
Breathing Exercise
Follow visual breathing pace guides for stress relief, sleep, or focus instantly online. Use box, 4-7-8, and resonant patterns free in your browser with no registration.
Sleep Calculator
Align your wake or bedtime to 90-minute sleep cycles so you wake during light sleep instantly online. Use the free calculator based on Hirshkowitz NSF data.
Calorie Deficit Calculator
Calculate a calorie target for weight loss using BMR, activity level, and pace instantly online. Adjust for slow, moderate, or aggressive deficits for free in your browser with no signup.
Parenting & Baby
View all parenting & baby →Pregnancy, baby feeding, sleep schedules, growth percentiles, and the daily calculators parents actually need.
Baby Sleep Schedule Builder
Age-appropriate sleep totals, nap counts, and wake windows from newborn through 24 months. Sample daily schedule.
Baby Formula Mixing Calculator
Correct formula-to-water ratios for powder, concentrate, or ready-to-feed. Storage rules.
Diaper Count Estimator
Diapers per day, month, and year by age. Cost per month, size progression, cloth comparison.
Baby Weight Percentile Calculator
WHO/CDC growth chart percentile from age, sex, and weight. 0-36 months.
Baby Food Portion Guide
How much solid food to offer by age. Per-meal portions, allergen intro list, foods to wait on.
Child Screen Time Tracker
AAP-aligned screen time targets by age. Gap-to-target calc and activity-swap ideas.
Allowance by Age Calculator
Age-appropriate weekly allowance. 5-currency support. Save/spend/give split suggestions.
Toddler Tantrum Tracker
Understand typical tantrum peaks and triggers for ages 2-3. Get de-escalation tips and reassurance online instantly with this free parenting tool.
Child Adult Height Prediction
Mid-parental height formula with ±4 inch range. Growth curve projection too.
Daycare Cost Calculator
Weekly, monthly, annual daycare cost by location, type, and age. Infant center to in-home nanny.
Breastfeeding Duration Tracker
Log nursing sessions and view daily totals compared to typical ranges for baby age online instantly. Monitor feeding patterns for free with no signup required.
Baby Bottle Feeding Amount Calculator
How many ounces per bottle and per day by age and weight. 2.5 oz/lb rule with 32 oz/day cap.
Baby Name Generator
Random baby names from US Social Security 2024 top-50 boys, girls, and unisex lists. Filter by starting letter.
Pets
View all pets →Dog and cat age conversions, food amounts, vaccine timing, travel and boarding costs — practical pet math.
Dog Age in Human Years Calculator
Modern research-based dog-to-human age. Size-adjusted since giants age faster.
Cat Age in Human Years Calculator
Cat-to-human age with life stage and care guidance. Indoor vs outdoor life expectancy.
Dog Food Amount Calculator
Daily calories and cups by weight, age, activity, body condition. Meal split included.
Cat Food Amount Calculator
Daily cat food by weight, age, food type (dry/wet/mixed). Kcal and pouches.
Pet Travel Cost Estimator
Estimate travel costs for pets by car, cabin, or cargo, plus hotels and supplies. Free, browser-only tool that compares boarding options instantly with no sign-up.
Pet Insurance Cost Estimator
Estimate monthly pet insurance premiums by type, age, breed risk, and coverage level instantly. Free online tool with no sign-up — get a rough cost in seconds.
Pet Weight Tracker
Track your pet's weight over time, see trends, and check against safe change rates. Free, no-sign-up tool that works instantly in your browser to monitor health.
Kennel Boarding Cost Calculator
Total kennel boarding cost by tier, extras, and length. Daycare alternative noted.
Dog Walk Distance Tracker
Log walks online and instantly see daily totals, calories burned, and breed energy targets. No download needed — start tracking in your browser.
Pet Medication Dosage Lookup
Look up dosing for common pet meds with species safety warnings instantly. Free, no-sign-up reference tool, but always consult your vet for final advice.
Dog Treat Calorie Budget
Instantly calculate the 10% treat budget for your dog. See daily calorie needs and how many common treats fit under the cap — free, no sign-up required.
Cooking & Food
View all cooking & food →Recipe scaling, baking conversions, coffee ratios, food storage times — the kitchen math that doesn't change.
Baking Conversion Calculator
Cups to grams for flour, sugar, butter, and 16 baking staples. Metric + imperial side-by-side reference.
Meat Doneness Temperature Guide
Instantly find USDA-safe internal temperatures for beef, pork, chicken, fish, and lamb, including rest times in Celsius and Fahrenheit. Free online, no registration needed.
Food Storage Shelf Life Calculator
How long food lasts in fridge and freezer. 30+ foods with good-until dates from your purchase date.
Sourdough Hydration Calculator
Calculate baker’s hydration ratio with starter accounting. Tier‑labeled from stiff to high‑hydration doughs. Free online calculator — instant results, no registration.
Coffee Ratio Calculator
Coffee-to-water ratios for drip, french press, espresso, aeropress, pour-over, cold brew. Grams + tbsp.
Cocktail Ratio Guide
Classic cocktail ratios for 15 drinks. Scaled to any serving count, oz + ml.
Sous Vide Time and Temperature Guide
Look up precise sous vide times and temperatures for 9 proteins across doneness levels. Free online guide includes pasteurization safety notes — instant access, no sign‑up.
Pizza Dough Calculator
Scale your pizza dough instantly with baker's percentages for hydration, salt, yeast, and oil. Free online tool with no sign-up required.
Rice to Water Ratio
Find perfect rice-to-water ratios for 8 types, with cups, ml, and cook times for stovetop and rice cookers. Free online tool, no sign-up needed.
Grocery Budget Splitter
Split a grocery bill by allocating items as shared or person-only to see per-person totals. Calculate fair shares instantly with this free, no-sign-up tool.
Bread Baker’s Percentages Calculator
Convert any bread recipe to baker's percentages and scale to a new flour weight instantly online. Free tool to adjust your dough in seconds with no downloads needed.
Ice Cream Scoop Calculator
Estimate how much ice cream to serve with kids' half-portions, flavor splits, and a cost breakdown at $7/quart. Use this free online calculator instantly with no signup.
Dry to Cooked Rice Converter
Convert dry rice, quinoa, farro, and more to cooked yield instantly online. Covers white, brown, jasmine, and barley — free, no sign-up needed.
Developer Utilities
View all developer utilities →Formatters, generators, and regex tools for daily dev work.
JSON Formatter
Paste JSON to beautify, validate, and minify with clear error messages, all in your browser without sign-up—free instant tool for developers.
JSON to CSV Converter
Turn JSON arrays into CSV with auto-detected headers and nested field flattening instantly in your browser—free, no-sign-up converter.
Base64 Encoder & Decoder
Encode text to base64 or decode base64 back to text. UTF-8 safe. Runs entirely in your browser.
URL Encoder & Decoder
Encode URLs for safe links and query strings, or decode them back to readable text. This free, no-download tool handles all percent-encoding tasks in your browser.
Regex Tester
Test regex patterns against sample text with live match highlighting and flag support. This free online tool works instantly in your browser with no signup required.
Regex Engine Benchmark
Measure your browser's regex performance across 12 patterns with a reproducible methodology. Get instant, downloadable JSON results free online with no signup.
JSON Parser Benchmark
Measure JSON parsing performance across 8 cases with throughput in MB/s instantly online—no sign-up, just run in your browser for free.
Password Hash Benchmark
Measure PBKDF2 + SHA-256 speed via Web Crypto. Live crack-time estimator at any entropy. OWASP iteration recommendations. Downloadable JSON.
UUID Generator
Generate one or many UUIDs (v4 random or v1 timestamp) instantly online. Copy single or bulk values for free, runs entirely in your browser with no sign-up.
Markdown to HTML Converter
Paste your Markdown to get clean, structured HTML instantly. Supports tables, code blocks, and task lists — no signup, all conversion happens securely in your browser.
Password Generator
Generate strong random passwords. Choose length, symbols, numbers, and avoid lookalikes. Runs locally.
Password Breach Checker
Check if a password has appeared in a known data breach. Uses HaveIBeenPwned k-anonymity — your password never leaves the browser.
What Is My IP
Check your public IP, approximate city, ISP, and timezone live in your browser with no sign-up or download needed—instant and private.
QR Code Generator
Generate QR codes for URLs, text, WiFi, or email. Customize size and error correction, then download as PNG or SVG. Free and online with no signup needed.
Hash Generator
Create MD5, SHA-1, SHA-256, and SHA-512 hashes from any text or file directly in your browser. Your data never leaves your computer with this free, instant tool.
CSS Minifier
Minify your CSS online instantly by pasting it in to strip comments and whitespace for a smaller file. A free tool that keeps your data safe, no signup.
JavaScript Minifier
Shrink JS by stripping comments and whitespace fast in your browser—no accounts, just paste and minify instantly for free, with no sign-up.
XML Formatter
Paste XML to format, indent, and validate it instantly in your browser. Checks syntax and makes messy markup readable — free, no signup, and no uploads required.
Diff Checker
Paste two blocks of text and see what changed line-by-line. Great for contracts, code, and writing revisions.
YAML / JSON / TOML Converter
Seamlessly convert between YAML, JSON, and TOML formats instantly. Paste any format to see the other two emit live — a free, private converter with no upload required.
HTTP Header Inspector
Analyze raw HTTP headers from curl or fetch to get detailed explanations and sensitive data warnings instantly. This free online tool works in your browser with no signup.
Cubic-Bezier Editor
Edit CSS cubic-bezier() easing functions visually by dragging handles and watching a live preview, then copy the result. Free, no signup required.
Open-Source License Chooser
A 4-question decision tree mapping to MIT, Apache, BSD, LGPL, GPL, AGPL, or CC0. Permissions + conditions explained.
Conventional Commits Builder
Free online builder for Conventional Commits 1.0 messages. Subject validation, breaking-change markers, and issue refs. Browser-only, no sign-up.
.editorconfig Generator
Build a .editorconfig file with Web, Python, or Go presets online. Add per-section overrides and download or copy instantly — no registration needed.
DNS Lookup
Query DNS records for any domain via Cloudflare's DNS-over-HTTPS endpoint. DNSSEC-validated, bypasses local caches.
My IP Address
Look up your public IP address instantly. Displays your IPv4, IPv6, country, and Cloudflare datacenter. A free, no-sign-up tool ideal for VPN verification.
HTML Minifier
Remove whitespace, comments, and empty attributes from HTML instantly while preserving script and pre content. Use this free browser-only tool with no registration required.
QR Code Decoder
Upload a QR code and decode its contents using your browser's BarcodeDetector API. Files stay on your device — completely free with no signup.
Screen Resolution Simulator
Preview any URL at iPhone, iPad, MacBook, 1080p, and 4K sizes instantly online. Spot-check responsive design for free without using devtools.
What Is My Browser
See your browser engine, OS, screen, viewport, pixel ratio, timezone, CPU threads, network type — everything a site can detect about you.
Address to Coordinates Geocoder
Convert any address, landmark, or place name to precise lat/lng coordinates. Powered by Nominatim / OpenStreetMap. Free, no API key.
Reverse Geocoder
Convert latitude and longitude into a human-readable address using your current location or any pair. Free, instant, and no signup required.
Email Validator
Validate email addresses with a three-layer check: syntax, MX record, and disposable blocklist. Get instant results online — free with no sign-up.
IP Geolocation Lookup
Find city, ISP, timezone, and ASN from any IP address instantly online—free tool with no sign-up, defaults to your own IP in seconds.
Mermaid Diagram Renderer
Create flowcharts, sequence diagrams, Gantt charts, and more with a live SVG preview and download as SVG or PNG. Free online, no-signup renderer — works instantly.
Cron Expression Explainer
Parse any cron expression into plain English and see the next five scheduled run times instantly. A free online tool with no signup required.
Markdown Badge Generator
Create Shields.io-style README badges with custom labels, colors, and logos. Instantly get Markdown, HTML, and image URLs for your projects — no signup, free online.
Curl to Fetch Converter
Convert any cURL command to an equivalent JavaScript fetch() call instantly, with support for -X, -H, -d, and basic auth. Free online, no signup.
JSON Tree Viewer
Browse deep JSON structures interactively. Collapsible nodes, type-coded values (strings, numbers, booleans, null). Pure client-side, no upload.
Hex to Text Converter
Encode text to hex bytes or decode hex back to text with full UTF-8 and emoji support. A free, instant, client-side tool with no sign-up.
Base32 Encoder & Decoder
RFC 4648 Base32 encode/decode. Same alphabet as TOTP/2FA secrets and URL-safe identifiers. UTF-8 safe.
YAML Linter
Lint and validate your YAML files instantly online with precise line and column error messages. Uses the same parser as GitHub Actions — free tool in your browser.
TOML Linter
Check your Cargo.toml or pyproject.toml for syntax errors instantly using the trusted parser from Rust and Python tooling. Free online, no sign-up.
Random User Generator
Generate plausible fake user profiles for testing with names, emails, and addresses. Filter by nationality and export to JSON or CSV instantly online, no signup.
Conventional Commit Parser
Parse Conventional Commits into type, scope, breaking flag, subject, body, and footers. Surfaces style warnings instantly — free online parser, no signup.
GraphQL Formatter
Pretty-print or minify any GraphQL query, mutation, or fragment in your browser. Instantly format your code with this free, no-download tool that requires no sign-up.
Tailwind Class Scanner
Paste HTML or JSX and get every unique Tailwind class extracted, grouped by category (layout, spacing, color, etc.). Migration + refactor tool.
JWT Decoder
Paste a JWT — see header, payload, and signature decoded. Client-side only, your token never leaves the browser.
HTML Formatter
Format messy HTML into clean, indented code or compress it to a minified version instantly. A free, no-sign-up tool that runs safely in your browser.
SQL Formatter
Beautify messy SQL queries with proper indentation and line breaks for SELECT, JOIN, WHERE, GROUP BY. Free online formatter — clean up your code in seconds, no sign‑up.
Password Strength Checker
Check how strong a password is — entropy bits, estimated time to crack, and what to improve. Private, offline.
URL Cleaner
Paste a URL with utm_*, fbclid, gclid, or ref parameters and instantly get a cleaned link. A privacy-friendly, browser-only tool that requires no registration.
Color Picker
Pick colors interactively with HEX, RGB, HSL, and alpha channels. Paste a color to convert or choose from a gradient — free online tool with no signup.
CSS Gradient Generator
Build and preview linear and radial CSS gradients with multiple color stops and custom angles. Copy the clean CSS code instantly with this free online generator.
Barcode Generator
Generate Code 128 or EAN-13 barcodes from any text or number. Download as PNG or SVG — free, no sign-up.
Favicon Generator
Convert an uploaded image into favicons in every needed size instantly. Get 16x16 to 512x512 PNGs plus ICO free, no sign-up.
Meta Tag Generator
Build SEO-ready meta tags—title, description, Open Graph, and Twitter Card—and copy the HTML block instantly. A free online generator with no signup required.
Robots.txt Generator
Generate a valid robots.txt for your site with disallow rules, allow overrides, and a sitemap link. Free, instant, and no sign-up required in your browser.
Open Graph Generator
Build Open Graph and Twitter Card tags to make your links render beautifully on Facebook, LinkedIn, X, Slack.
Keyword Density Checker
Paste an article and see the frequency of each word and 2-3 word phrase. Essential for SEO content optimization.
Schema Markup Generator
Generate valid JSON-LD schema markup for Article, Product, FAQ, and more instantly online. Copy structured data into your head section free, no sign-up.
FAQ Schema Generator
Create valid JSON-LD for Google rich results by entering Q&A pairs. Free instant tool—works in your browser with no sign-up.
XML to JSON Converter
Transform XML documents to JSON instantly in your browser. Preserves all attributes and nested elements securely on your device — free, fast, and with no signup needed.
JSON to XML Converter
Convert JSON to well-formed XML with indentation. Control root element name, attribute prefix, and wrapper rules.
YAML Formatter
Format and validate YAML data instantly in your browser. Catches tab errors and bad anchors while pretty-printing — a free online tool with no downloads needed.
JSON Diff Checker
Find added, removed, and changed keys across nested objects with a free instant diff tool in your browser—no sign-up, just paste and compare.
HTML Entity Encoder & Decoder
Flip text between raw and escaped HTML entities like & and © in one click. A free, instant converter that keeps your data safe in the browser.
Cron Expression Builder
Build a cron schedule visually using a simple form for minutes, hours, and days, then copy the final string. Free, instant, and no sign-up needed.
Cron Expression Explainer
Decode any cron expression, including Quartz and Jenkins syntax, into plain English with the next five run times. Free online tool, works in seconds.
HTTP Status Code Lookup
Search every HTTP status code, from 200 to 5xx, for plain-English meanings and RFC references instantly. A free, online tool that requires no sign-up to use in seconds.
MIME Type Lookup
Find the correct Content-Type for any file extension and vice versa, from images to JSON. A free, no-signup online lookup tool that delivers results in seconds.
URL Parser
Parse any URL to instantly see its protocol, host, port, path, query string, and fragment. A free, online tool that works live in your browser with no sign-up.
Query String Parser
Parse any URL query string into clear key/value pairs, including repeated keys and arrays. Works instantly in your browser with no registration required.
Filename Cleaner
Remove illegal characters, trim length, and collapse spaces to make file names safe on Windows, Mac, and Linux instantly online.
Line Counter
Count total lines, blank lines, comment lines, and code lines in any paste. Great for LOC estimates and log review.
Box Shadow Generator
Build complex CSS box-shadows with a live, instant preview online for free. Adjust offset, blur, spread, and color and copy the rule instantly with no signup.
Border Radius Generator
Create organic CSS border-radius with independent corner controls instantly online. Generate the exact rule or full 8-value shorthand free in your browser.
CSS Clamp Generator
Generate responsive CSS clamp() values for perfectly fluid typography by entering your minimum and maximum screen widths. Free, instant result.
Flexbox Playground
Experiment with justify-content, align-items, and wrap and see live CSS updates. Free instant tool in your browser—no download.
Grid Layout Generator
Build a responsive CSS grid layout visually by defining columns, rows, and gaps. Instantly copy the exact grid-template-areas rule with this free online tool.
Aspect Ratio Calculator
Keep images and video in proportion — enter width or height, get the matching dimension for any aspect ratio.
Image Dimensions Checker
Drop any image to instantly see its pixel width, height, aspect ratio, and file size. A free, online tool that keeps everything private in your browser with no signup.
Contrast Checker
Check color contrast against WCAG AA and AAA targets for normal and large text. Live preview and pass/fail badges — free online tool with no download.
Social Media Image Sizes
Check up‑to‑date image sizes for Instagram, X, Facebook, LinkedIn, TikTok, and YouTube. Free online cheat sheet covers posts, covers, stories, and thumbnails — no sign‑up.
Mock Data Generator
Generate realistic fake JSON data including users, emails, phones, and addresses. Perfect for testing, demos, and seeding databases instantly in your browser.
JSON to TypeScript Interface
Paste JSON to get matching TypeScript types with optional and nullable fields in seconds—free online tool, no sign-up or download needed.
CSS to Tailwind
Convert any classic CSS rule directly into equivalent Tailwind utility classes for a faster migration. Free online tool, instant conversion, no signup.
Tailwind to CSS
Paste Tailwind class names and get the underlying CSS rules. Useful for emails, PDFs, and non-Tailwind codebases.
HTML to JSX
Transform raw HTML into valid JSX with className objects, self-closing tags, and SVG fixes online. A free, instant converter that runs in your browser with no signup.
SQL to JSON
Parse SQL INSERT statements and export rows as JSON. Handles quoted strings, nulls, and numeric types. Free online tool converts instantly in your browser — no sign‑up.
Gitignore Generator
Generate a ready-to-paste .gitignore file for Node, Python, Go, and more. Pick your stack and get the exact template instantly with this free, no-download tool.
README Generator
Generate a clean, GitHub-ready README.md by answering simple questions about your project. This free tool works instantly in your browser with no signup.
Regex Builder
Build regular expressions from checkboxes with a live preview against your test text. This free, instant tool works entirely in your browser with no download.
Discord Timestamp Generator
Pick a date and time, get all Discord timestamp formats (short date, long date, relative). Copy-paste ready.
Sitemap URL Generator
Generate a valid sitemap.xml with changefreq, priority, and lastmod from a URL list instantly online. Get it ready for Google Search Console free, no sign-up.
JSON Schema Generator
Create a draft-07 schema with types and required fields from any JSON instantly in your browser—free tool with no sign-up or download.
JWT Generator
Create HS256/HS384/HS512-signed JWT tokens from a header, payload, and secret. Runs entirely in your browser.
Env File Parser
Paste a .env file to get a validated list of keys and parse errors online. Detects duplicates and bad quoting instantly — free, no sign-up.
User Agent Parser
Paste a User-Agent string to parse out the browser, OS, device, and engine details instantly. A free, no-sign-up tool ideal for log analysis, runs fully in your browser.
cURL Command Builder
Build a complex cURL command with headers, auth, and a JSON body using a simple online form. Copy it for instant use, free and no signup.
Regex to English
Paste a regular expression to get an instant, plain-English walkthrough of what it matches, group by group. A free online explainer tool with no signup needed.
TOML to JSON
Transform TOML files into equivalent JSON online instantly. Paste your config and get results with no file upload required, all for free in seconds.
Dockerfile Lint Helper
Scan a Dockerfile for common smells — latest tag, no USER, ADD for URLs, secrets in RUN, missing HEALTHCHECK, and more.
Git Commit Message Helper
Free online tool to build conventional-commit messages from type, scope, subject, and body. Paste straight into git commit. No sign-up needed.
Semver Bumper
Bump a semantic version across major, minor, or patch levels instantly online. See exact changes and pick the right increment for your release free.
Bash Command Explainer
Paste any bash pipeline — get a plain-English explanation of each command and its flags.
API Rate Limit Calculator
Free online API rate limit calculator. Enter req/sec, concurrency, and latency to calculate effective throughput and predict when you'll saturate.
JSON Schema to TypeScript
Paste a JSON sample and generate clean TypeScript interfaces instantly. Free browser-only converter — no signup, no upload, types inferred automatically.
OpenAPI Endpoint Counter
Paste an OpenAPI 3 spec — see paths by method, operation IDs, and count endpoints at a glance.
HTTP Header Explainer
Paste raw HTTP headers to get plain-English meanings and security implications for Cache-Control, CSP, and HSTS. A free, instant online developer tool with no signup.
WebSocket Frame Parser
Decode raw WebSocket frame bytes — FIN, opcode, mask, payload length, masking key, and unmasked payload.
Dotenv Generator
Turn a VAR=value list into a .env file with 32-hex secrets and duplicate detection online. Get instant, free results in seconds with no sign-up.
Developer Tool Idea Scorer
Score your dev-tool idea on 6 weighted criteria — demand signal, distribution path, defensibility, monetization clarity, build cost, founder-market fit.
CLI DX Checklist
Interactive 16-item checklist for building CLIs developers love — first-run experience, machine-readable output, error handling, trust + safety, distribution.
GitHub Actions Cost Estimator
Estimate your monthly GitHub Actions spending based on workflow runs and runner type. See free-tier coverage instantly with this free, no sign-up calculator.
Tech Repair Worth It Calculator
Free online calculator to decide repair vs replace for phones, laptops, TVs, and consoles. Applies the 50% and 75% value rules instantly. No sign-up.
PX to REM Converter
Transform CSS pixels to rem/em units at any base font-size in your browser instantly. Free online converter with no download or registration needed.
Iframe Generator
Build clean iframe tags with sandbox, lazy-load, and accessibility attributes while previewing live. A free, instant online generator requiring no download or signup.
Color Palette Generator
Generate 5-color harmonious palettes in analogous, complementary, triadic, tetradic, mono, and random modes. Click to copy hex codes instantly, no signup needed.
CSS Gradient Generator
Build complex linear, radial, or conic CSS gradients with multiple color stops and get a live preview. Copy the output instantly, no registration.
HTML Encoder / Decoder
Convert HTML special characters to entities or decode them back in three modes. A free, browser-only tool that works in seconds with no signup needed.
JSON Validator
Validate JSON with native browser parser. Errors point to line/column. Reports size, nodes, and max depth.
Hex to RGB Converter
Convert between hex, RGB, and HSL with alpha support instantly. Copy CSS-ready strings for free in your browser with no sign-up needed.
Font Pair Generator
Find curated heading and body font pairings fast and copy the CSS link instantly. Free online tool, no registration needed.
Color Name Finder
Find the closest CSS named colors to any hex value instantly. Free browser-only tool ranks the 5 nearest of 140 CSS named colors — no signup needed.
Cookie Consent Generator
Generate a drop-in HTML + JS cookie consent banner with localStorage persistence and customizable colors. Free online generator — no signup, ready in seconds.
WhatsApp Button Generator
Drop-in WhatsApp click-to-chat button. Floating or inline, pre-filled message, official wa.me URLs.
GitHub Badge Generator
Generate custom shields.io badges for your GitHub README in seconds. Customize the label, message, and color instantly with this free, browser-only tool.
YouTube Embed Generator
Create customized YouTube embed codes instantly online. Set autoplay, loop, start time, and muted start with a live preview — completely free with no registration needed.
Instagram Embed Generator
Create official blockquote embeds for Instagram posts and reels with custom width and caption in your browser—free, instant, and no sign-up.
TikTok Embed Generator
Create custom TikTok video embed code using the official pattern. Adjust the width in your browser and get ready-to-paste HTML online for free.
Facebook Embed Generator
Create iframe embed codes for posts, videos, or pages instantly. No SDK required—free online tool in your browser.
Video Embed Generator
Create native HTML5 video embed codes instantly online. Supports self-hosted MP4/WebM with autoplay, loop, and poster controls, free with no sign-up needed.
SVG Wave Generator
Generate smooth SVG wave shapes for hero dividers and decorative footers. Layered, color-tunable.
CSS Loader Generator
Generate a pure-CSS loading spinner with no JavaScript, choosing from 5 tunable styles for color, size, and speed. Free and instant, no signup.
Social Share Buttons Generator
Generate vanilla HTML share buttons for X, Facebook, LinkedIn, Reddit, and WhatsApp. Free online tool — no third‑party SDK or tracking, instant in your browser.
Markdown Preview
Preview Markdown headings, bold, lists, links, and code sections live as you type. A completely free, no-signup online renderer that works instantly in your browser.
Color Contrast Checker
Check color contrast against WCAG 2.x AA and AAA standards. Test foreground vs background instantly online, no signup needed for quick accessibility audits.
CSS Grid Generator
Build a CSS Grid template visually from equal columns to custom tracks, with a live preview. A free online generator that works in your browser.
JSON Visualizer
Interactive tree view of any JSON document. Click to expand/collapse nodes. Useful for exploring API responses.
CSS Animation Generator
Generate custom CSS keyframe animations instantly by tweaking 8 presets for duration, delay, and easing. A free browser-only tool with no signup.
CSS Button Generator
Generate a fully styled CSS button with baked-in hover, active, and focus states. Tune colors and sizing in your browser instantly, no signup.
HTML Table Generator
Design interactive HTML tables by clicking cells to edit headers, stripes, and borders. Get inline-styled output for emails instantly with this free, no-download generator.
JavaScript Minifier
Compress JS code by removing comments and whitespace instantly in your browser—free, no-sign-up tool for quick size reduction before production.
XML Sitemap Generator
Create a sitemap.xml file online instantly from your list of URLs. Auto-sets lastmod today and applies priority with changefreq — free download, no signup needed.
Color Palette Extractor
Extract dominant colors from any image using histogram analysis, all in your browser. Click swatches to copy hex codes instantly — free tool, no signup.
.htaccess Generator
Build a custom .htaccess file online to enforce HTTPS redirects, Gzip, caching, and hotlink protection. Create error pages and 301 redirects instantly with no download.
Subnet / CIDR Calculator
Calculate IPv4 subnets from CIDR or dotted mask: network, broadcast, host range, usable hosts, wildcard, binary. Free, browser-only.
Excel Formula Explainer
Paste any formula and get a plain-English breakdown of 60+ functions online free—no sign-up required, in your browser.
Chmod Calculator
Calculate Unix file permissions: octal (755, 644) ↔ symbolic (rwxr-xr-x) ↔ rwx checkboxes. Covers setuid, setgid, sticky bit. With presets.
Htpasswd Generator
Create .htpasswd lines for Apache or nginx basic auth with browser-only SHA hashing instantly. Includes config snippets and a free online tool with no registration.
IPv6 Expander & Shortener
Format IPv6 addresses to canonical form, handling zone IDs and prefixes, instantly online—free tool with no registration required.
Test Credit Card Numbers
Reference table of canonical test card numbers from Stripe, Adyen, and Braintree sandbox docs. Plus Luhn validator + network detector.
Port Number Lookup
Search over 140 well-known TCP and UDP ports by number or service name. Free online reference tool with no sign-up, covering web, mail, DNS, and more.
AI & Prompt Tools
View all ai & prompt tools →Prompt builders, token counters, and prompt libraries for ChatGPT, Claude, Gemini, and image models.
AI Prompt Generator
Turn a vague idea into a structured prompt. Pick role, task, context, constraints, and output format. Works with ChatGPT, Claude, and Gemini.
AI Prompt Library
Browse a curated catalog of prompt templates for writing, coding, marketing, and research. One click to copy.
Custom GPT & Claude Project Prompt Builder
Build a full custom GPT or Claude Project prompt with persona, rules, examples, and output schema. One copy-paste block for ChatGPT, Claude Projects, and assistants.
AI Image Prompt Builder
Build structured image prompts: subject, style, camera, lighting, and negative prompt. Paste straight into Midjourney, DALL·E, or Stable Diffusion.
AI Art Style Picker
Browse 40+ art styles — photoreal, anime, watercolor, cyberpunk — with the exact prompt snippet to paste into any image generator.
AI Token Counter
Estimate tokens, characters, words, and approximate API cost for GPT-4o, GPT-4, Claude, and Gemini — before you hit send.
AI Model Comparison
Side-by-side spec sheet of frontier models: context window, input/output price, multimodal support, strengths, and best-fit use cases.
Prompt Improver
Transform any vague prompt into a specific, structured, example-driven version instantly. Get a free online improvement checklist with no sign-up.
AI Chat Export Formatter
Paste a ChatGPT JSON export or Claude markdown transcript, get a clean readable transcript you can share, archive, or publish.
AI Writing Humanizer
Rewrite AI-generated text to sound more human. Removes typical tells — 'delve into', 'in the realm of', 'tapestry' — and tightens prose.
LLM Context Window Calculator
Check if your tokens fit GPT-4o, Claude, Gemini, Llama, or Mistral context windows — see headroom and percent used. Free, instant, browser-only.
AI Cost Estimator
Estimate daily, monthly, and yearly API cost for GPT-4o, Claude, Gemini, and more based on your traffic and token usage.
System Prompt Builder
Compose a focused system prompt from a role, tone, constraints, and output format — copy-ready for any LLM.
Agent JSON Validator
Paste tool-call or agent-output JSON — parse, pretty-print, highlight errors, and count keys and depth.
AI Regex Generator
Describe what you want to match in plain English — get a canonical regex (email, URL, phone, UUID, etc.) plus a live test.
Jailbreak Risk Scorer
Check prompts for injection patterns and DAN-style attempts with a free instant risk score in your browser—no sign-up, just paste and analyze.
AI Sampling Settings Helper
Find the right temperature, top_p, top_k, and penalties for code, creative, factual, or reasoning prompts. Free, instant — no sign-up needed.
Chain-of-Thought Formatter
Wrap any question in a structured Understand → Plan → Execute → Verify CoT template to boost reasoning quality.
Embedding Cost Estimator
Estimate total tokens and cost for embedding a corpus online. Compare OpenAI, Voyage, Cohere, and more at once — free tool, instant results.
AI Output Length Estimator
Predict how many tokens an LLM will generate for summaries, rewrites, code, or essays — and budget max_tokens. Free, instant, no sign-up needed.
AI Consulting ROI Calculator
Estimate the ROI of an AI consulting engagement before signing. Inputs: project fee, hours saved per week, hourly rate, ongoing API cost.
AI Tool Evaluation Scorecard
Score any AI vendor across 7 weighted criteria — privacy, integration cost, recurring cost, output quality, vendor stability, compliance fit, switching cost.
GitHub Copilot ROI Calculator
Estimate the annual return on investment for GitHub Copilot by inputting team size, dev hours, and hourly rate. Get an instant projection with this free online tool.
Gemini vs ChatGPT Cost Calculator
Compare per-token pricing across Gemini 3 Pro, 2.5 Pro/Flash, GPT-5/mini/nano, and GPT-4o. See which model wins at your input/output mix.
Claude vs DeepSeek Cost Calculator
Side-by-side cost for Claude Opus 4.7, Sonnet 4.6, Haiku 4.5 vs DeepSeek V3.2 and R1 — at your real volume.
Prompt Cache Savings Calculator
Calculate your monthly savings from prompt caching across Anthropic, OpenAI, and Gemini. 90% off cached input tokens — usually pays back instantly.
Batch API Savings Calculator
Anthropic, OpenAI, Gemini, and DeepSeek all offer 50% off via batch APIs. Calculate your savings on bulk classification, embeddings, and evals.
Multimodal Prompt Cost Estimator
Estimate costs for prompts that include images, video, or audio. Uses standard token conversions in seconds. A free, no-sign-up online estimator for your AI projects.
AI Agent Loop Cost Estimator
Agent loops accumulate context every step. This calculator runs the triangular-sum cost across 7 frontier models so you don't get a surprise bill.
Embeddings Cost Comparison
Compare cost-per-million-tokens across 8 embedding providers with benchmark scores online. Pick the right model for your RAG corpus — free, instant.
AI Coding Tool Cost Comparison
Compare monthly cost across 9 AI coding plans: GitHub Copilot, Cursor Pro/Ultra, Windsurf, Claude Pro/Max, Cody, Continue.dev — at any team size.
AI Monthly Cost Budgeter
List every AI subscription and API spend, set a budget, see your over/under at a glance. Free tracker for ChatGPT, Claude, Gemini, Cursor, and more.
Frontier AI Model Tracker
Live tracker of every frontier AI model: Claude 4.x, GPT-5, Gemini 3 Pro, DeepSeek R1/V3.2, Kimi K2, Grok 4, Llama 4, Qwen 3.5, Mistral Large 3.
AI Feature Comparison Matrix
Vision, audio, video, tool use, web search, code interpreter, file upload, voice mode, memory, agents — across ChatGPT, Claude, Gemini, Perplexity, and 6 more.
AI API Rate Limit Tracker
Current RPM, TPM, and daily quota limits across Anthropic, OpenAI, Google, DeepSeek, Perplexity, xAI — by tier, including ChatGPT Plus/Pro caps.
Local vs API Break-even Calculator
How many months until self-hosting pays back vs using API? Compare Mac Studio, RTX 4090/5090, and Hyperspace pods at your usage level.
Prompt Rewriter
Paste your prompt, get a quality score, and copy a structured Role/Task/Audience/Constraints/Format template instantly with no registration needed.
System Prompt Generator
Generate a structured system prompt for ChatGPT Custom GPTs, Claude Projects, Gemini Gems, or API workloads. Role + style + must/never + examples.
AI Model Picker Quiz
4-question quiz to recommend an AI model + tool combo: Claude, ChatGPT, Gemini, DeepSeek, Cursor, Copilot. Tuned by use case + budget + priority.
Prompt Injection Detector
Scan text for prompt-injection patterns like role hijacks and hidden unicode instantly. Free online detector tool with no sign-up, browser-only.
MCP Server Picker
Select a workflow like coding, research, or scraping to get recommended MCP servers with a copy-paste Claude Desktop config. Free online tool, no signup required.
AI Readiness Score
12-question assessment: are you ready to roll out AI to your team? Scored 0-100 with a verdict and the gaps to close before adoption.
Agentic Browser Comparison
Compare 7 AI browsers: ChatGPT Atlas, Comet, Dia, Microsoft Copilot in Edge, Chrome+Gemini, Brave Leo, Arc Search. Features, privacy, pricing.
AI Voice Mode Comparison
Compare AI voice tools: ChatGPT Advanced Voice, Gemini Live, Claude Voice, Grok, Apple Intelligence, ElevenLabs, Sesame Maya. Latency + access + best use.
AI Video Tool Tracker
Live tracker of every AI video generator: Sora 2, Veo 3, Runway Gen-4, Kling 2.5, Pika 2.5, Hedra, Higgsfield, Luma, HunyuanVideo, CogVideoX.
AI Music Generators Compared
Compare 8 AI music tools: Suno v4.5, Udio, Riffusion FUZZ, ElevenLabs Music, Sonauto, Stable Audio 2.5, AIVA. Pricing, licenses, best use cases.
AI Search Engines Compared
Compare 8 AI search engines: Perplexity, ChatGPT Search, Google AI Overviews, Bing Copilot, You.com, Phind, Kagi, DuckDuckGo. Models, citations, pricing.
AI Agent Platforms Compared
10 agentic AI platforms compared: ChatGPT Operator/Atlas, Claude Computer Use, Devin, Manus, Replit Agent, Cursor Background Agents, Bolt.new, v0, Lovable.
AI Context Window Planner
Plan your prompt budget across system + docs + history + output + buffer. See which AI models (Claude, GPT, Gemini, DeepSeek, Kimi) fit your needs.
AI Data Residency Checker
Find AI providers compliant with your region (US, EU, UK, APAC, Canada) and certifications (SOC 2, HIPAA). Includes Bedrock, Azure, Mistral, self-host.
AI Transcription Tools Compared
9 transcription tools compared: Otter, Whisper API, Deepgram Nova-3, AssemblyAI, Rev, Sonix, Granola, Zoom AI, MacWhisper. Accuracy, languages, pricing.
Open-Source LLM Tracker
Live tracker of 15 open-weight LLMs: Llama 3.3/4, Qwen 3.5, DeepSeek V3.2/R1, Kimi K2, Mistral Large 3, Gemma 3, Phi-4, SmolLM3. Filter by license.
AI Image Prompt Helper
Build effective image prompts: pick style, lighting, camera, aspect ratio, extras. Outputs prompt + negative prompt for Midjourney, DALL-E, FLUX, SD 3.5.
Games
View all games →Quick browser games for breaks — snake, 2048, tic-tac-toe, memory, hangman, word puzzles.
Tic Tac Toe
Play tic-tac-toe online vs unbeatable AI or a friend. Tracks wins, losses, draws. Free.
2048 Game
Play 2048 online. Slide tiles to combine matching numbers. Best score persists in your browser.
Hangman Game
Classic hangman word-guessing game. 6 wrong guesses ends the round. Free, browser-only.
Memory Game
Card-matching memory game. 8 emoji pairs. Track moves and time. Free, no account.
Reaction Time Test
Test your visual reaction time. Click when green. Tracks best and average across attempts.
Word Scramble
Unscramble jumbled letters into a real word. 24-word vocabulary. Free puzzle game.
Snake Game
Play classic snake online. Eat food to grow; don't hit walls or yourself. Best score saved.
Rock Paper Scissors
Classic rock-paper-scissors against CPU. Uniform random play. Track wins, losses, ties.
Connect Four
Play Connect Four online on the standard 7x6 board. Two-player; drop pieces to get four in a row.
Lights Out
Classic Lights Out puzzle. Click cells to toggle them and 4 neighbors. Turn off all lights to win.
Whack-a-Mole
30-second whack-a-mole reaction game on a 3x3 grid. Best score saves to your browser.
Higher or Lower
Predict whether the next card is higher, lower, or the same. Build the longest streak you can.
Number Guess
Guess the secret number 1-100. Higher/lower hints. Best attempts saved.
Math Speed Test
60 seconds to solve as many arithmetic problems as you can. Mix of plus, minus, times, divide.
Simon Says
Memorize and repeat color sequences. Each round adds one color. Best round saves.
15 Puzzle
Classic 15-puzzle slider. Arrange tiles 1-15 in order. Every shuffle is solvable.
Tower of Hanoi
Move all disks to the right peg. Larger disks can't go on smaller. Optimal solves in 2^n minus 1 moves.
Wordle Clone
Wordle-style 5-letter word guessing. 6 attempts. Green / yellow / gray feedback.
Minesweeper
Classic Minesweeper on a 9x9 grid with 10 mines. Left-click to reveal, right-click to flag.
Pong
Classic Pong. Mouse or finger controls your paddle. Ball speeds up with each rally.
Gaming
View all gaming →Sensitivity converters, DPS calculators, bracket generators, and the math for Minecraft, D&D, and MTG.
Mouse Sensitivity Converter
Convert mouse sensitivity between CS2, Valorant, Apex, Fortnite, and more instantly online. See cm/360 in one click for free, no sign-up required.
eDPI Calculator
Calculate effective DPI with tier labels and cm/360 reference online. Compare against pro player averages instantly — free tool with no sign-up.
FOV Calculator
Convert field of view between aspect ratios and games. Horizontal + vertical FOV using Hor+ formula.
FPS to Frame Time Calculator
Convert FPS to milliseconds per frame. Monitor refresh-rate comparison table from 30 Hz to 500 Hz.
Ping Latency Tier Checker
Check your ping ms against tiers from Excellent to Bad with competitive thresholds and distance estimates. Free, instant online tool in your browser with no sign-up.
Gaming DPS Calculator
Raw, sustained, and effective DPS with crit chance + multiplier. Works for any shooter weapon.
K/D Ratio Calculator
K/D ratio with tier labels and a target projection — see how many kills or fewer deaths you need to hit a target K/D.
Win Rate Calculator
Win rate % with target projection — wins needed in a row or losses you can absorb to hit a goal.
XP to Level Calculator
Estimate your level-up grind time instantly for any RPG online. Enter current XP, target XP, and your XP per hour rate — works universally, free with no registration.
Loot Drop Probability Calculator
Probability of at least one rare drop in N attempts. Median, 95%-guaranteed, and mean attempts.
Team Randomizer
Split a player list into balanced teams. Random shuffle or greedy-balanced by skill ratings.
Tournament Bracket Generator
Create printable tournament brackets instantly. Seed by list order, random, or snake for single or double elimination with no sign-up required.
Gamertag Generator
Random gamertag generator with style themes (cool, funny, edgy, gamer, fantasy), length control, and optional leet speak.
Clan Tag Generator
Short 2-4 letter clan tags. Random pronounceable CVC or seed-phrase derived. Caps / mixed / leet styles.
Dice Notation Roller
Parse D&D-style dice notation: `4d6+2`, `2d20kh1` (advantage), `3d6!` (exploding). Shows individual rolls and stats.
Minecraft Food Calculator
Analyze hunger and saturation stats for every food item to find the best picks and plan meals. A free, no-signup calculator with instant results in your browser.
Minecraft Enchantment XP Calculator
Estimate total XP required for any enchantment level using Minecraft’s three-tier formula (0-15, 16-30, 31+). Free instant calculator online, no signup needed.
D&D Encounter Difficulty Calculator
5e encounter XP budget for Easy / Medium / Hard / Deadly based on party size and level. Multiplier-adjusted.
MTG Mana Curve Analyzer
Analyze your Magic: The Gathering deck's mana curve. Paste a decklist to see the average CMC and suggested land count in seconds, free and online.
Steam Library Value Calculator
Estimate total spent, cost‑of‑regret on unplayed games, and most‑expensive titles in your Steam library. Free online estimator with instant manual‑entry results — no sign‑up.
PC Build vs Hire Calculator
Compare DIY PC build cost (parts + your time + mistake risk) vs hiring a professional assembler (parts + service fee minus warranty value).
Gaming PC Spec Recommender
Pick your use case (esports 1080p, mainstream 1440p, AAA with ray tracing, 4K, streaming, VR) and get a tier-bucketed component recommendation with budget range
Gaming PC Rent vs Buy Calculator
Compare annualized cost of owning a gaming PC vs renting for events (LAN parties, tournaments). Includes depreciation, maintenance, and resale-value math.
Audio, Video & Voice
View all audio, video & voice →Record, trim, convert, and transcribe audio + video — all in your browser.
Dummy Image Placeholder
Generate placeholder images with custom sizes and colors online. Download or copy to clipboard in seconds — free, browser-only tool with no ads.
Favicon Extractor
Download favicons from any website in sizes 16px to 256px free. Multiple fallback sources, perfect for link cards—no registration needed.
Lorem Picsum Browser
Create and download Unsplash-licensed placeholder images at any dimensions. Choose random, seeded, or specific IDs with grayscale and blur filters, instantly in your browser.
Image to ASCII Art
Transform any photo into ASCII art with 4 character ramps and invert mode, then download as .txt instantly in your browser—no sign-up or upload needed.
Voice Recorder
Record your voice directly in the browser and download as WebM or WAV instantly. This free tool requires no install, no sign-up, and nothing is uploaded.
Audio Trimmer
Trim or cut any audio file in your browser. Pick start and end, preview, download the trimmed clip. No upload.
Audio Silence Remover
Detect and strip long silent gaps from voice recordings and podcasts. Adjustable threshold, in-browser processing.
Audio Speed Changer
Change audio playback speed without distortion. 0.5× to 2× with optional pitch preservation. Export the new file.
Audio Pitch Changer
Shift the pitch of any audio file up or down by semitones. Great for transposing music or masking voices.
Video Trimmer
Cut MP4 and WebM videos directly in your browser. Set start and end points, preview, and save the clip with no watermark or uploads—free and instant.
Video to GIF Converter
Convert a short video clip into an animated GIF instantly. Choose start time, length, frame rate, and size. Runs entirely in your browser, free with no watermark.
Video Mute
Strip the audio track from any MP4 or WebM video instantly in your browser. Get a silent output with no re-encoding artifacts, free and with no uploads.
Video Frame Extractor
Grab any frame from a video as a PNG or JPG image instantly. Scrub to the exact second and save, great for thumbnails—free, browser-only, with no uploads.
Screen Recorder
Record your screen, a window, or a browser tab instantly online with no install. Download your recording as WebM free and save it in seconds.
Text to Speech
Convert text to natural-sounding speech with system voices. Pick voice, rate, and pitch. Download the audio.
Speech to Text
Transcribe your voice to text live using any mic in 30+ languages. Free online speech‑to‑text tool — edit and copy results instantly with no download or registration.
Voice Note Transcriber
Record a voice note and get a text transcript instantly in the same browser tab. Copy, edit, or paste anywhere—free online tool with no sign-up required.
Universal Image Converter
Convert images between JPG, PNG, and WebP formats instantly in your browser. Batch processing and a quality slider, completely free with no uploads required.
JPG to WebP Converter
Compress JPG to WebP with 25-35% size reduction at same quality, batch supported, instantly in your browser—free with no sign-up required.
GIF to PNG Converter
Convert GIF to PNG. Captures first frame; for animation, keep GIF or use video.
BMP to PNG Converter
Convert BMP files to lossless, smaller PNGs instantly in your browser. Free online tool with no downloads or registration required for clean image conversion.
BMP to JPG Converter
Convert BMP images to high-compression JPG format instantly in your browser. Adjust the quality slider to balance size and clarity without any signup.
PNG to GIF Converter
Transform PNG images to GIF format in your browser with no download required. Output works in most viewers, free and instant conversion tool.
Text & Writing Utilities
View all text & writing utilities →Count, format, clean, and convert text in a tab.
Word Counter
Free word counter. Paste text and see words, characters, sentences, and reading time instantly. Works offline after load.
Character Counter
Count characters with and without spaces. See limits for Twitter, SMS, meta descriptions, and more.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case. One click.
Text Reverser
Reverse any text. Flip characters, reverse word order, or reverse sentence order. Free and instant.
URL Slug Generator
Generate clean, SEO‑ready URL slugs from any title. Free online tool — lowercase, dashes, no special characters. Instantly copy with one click, no registration needed.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraph, sentence, or word count. Classic or alternate variants.
Readability Score Checker
Check your text's Flesch Reading Ease and grade level. Paste your writing to get an instant online analysis with no signup, completely free in your browser.
Typing Speed Test
Measure your words per minute and accuracy with timed tests. Choose 1, 3, or 5 minute challenges and get instant results online with no sign-up.
Remove Duplicate Lines
Paste text and remove duplicate lines instantly with one click. Adjust case sensitivity and whitespace handling right in your browser, completely free.
Text Sorter
Sort lines alphabetically, reverse alphabetically, or by length. Options to dedupe and ignore case. Free, private.
TXT Splitter
Divide a TXT file by line count, character count, or size instantly. Download each chunk with all processing done securely in your browser for free.
Text Joiner
Paste multiple text blocks or drop files and join them with a custom separator — newline, tab, comma. Free, no uploads.
CSV Viewer
Preview any CSV file instantly as a clean, sortable, and searchable table right in your browser. A free viewer that never uploads your data.
CSV Cleaner
Clean your messy CSV instantly by uploading it to trim whitespace, fix quotes, and dedupe rows. Works free in your browser, no signup needed.
Line Break Remover
Paste text with line breaks and get a single paragraph, space-joined, or custom-separator output. Useful for emails and forms.
Whitespace Remover
Clean pasted text by collapsing repeated spaces, tabs, and newlines. Trim edges, normalize to single spaces, or strip entirely.
Invisible Character Detector
Find zero-width spaces, BOMs, and hidden chars breaking CSVs or passwords, then clean them instantly in your browser—free with no sign-up.
Special Character Remover
Strip accents, emojis, punctuation, and non‑ASCII characters from text. Pick exactly which categories to keep. Free online tool works instantly in your browser — no sign‑up.
Unicode Text Normalizer
Normalize text to fix broken accents and compatibility characters instantly. Choose NFC, NFD, NFKC, or NFKD and clean text in your browser, free, no sign-up required.
Bullet List Cleaner
Strip or normalize bullet markers from pasted lists like •, -, *, or 1.) instantly online. Keep just the items or swap to a preferred marker for free with no signup.
Sentence Counter
Count sentences and check reading time, average length, and stats instantly online. Paste your text for a free analysis with no sign-up needed.
Paragraph Counter
Count paragraphs in pasted text with average length, word count per paragraph, and a live outline view.
Markdown Table Generator
Create tables with custom headers, alignment, and rows and copy the Markdown instantly. A free, browser-based table generator with no signup and no download needed.
HTML Table Generator
Build an HTML table visually and copy the markup. Supports header row, striped rows, borders, and alignment.
Text Summarizer
Paste an article and get a short summary (extractive). Pick 3, 5, or 10 sentences. Works offline in your browser.
Caesar Cipher & ROT13
Encode or decode messages by shifting letters by any amount, including ROT13, instantly online. Use this classic substitution cipher tool for free in your browser with no downloads.
Morse Code Translator
Translate text to Morse code and decode it back. Play the result as audio at any speed. A free, online tool perfect for ham radio and scouts.
Binary Text Encoder
Transform ASCII text into binary code and back with support for punctuation online. Convert Unicode code points and spaces free in your browser.
ASCII Art Generator
Turn plain text into ASCII art with multiple font styles. Copy to terminals, READMEs, commits, or Slack.
Roman Numeral Converter
Convert numbers up to 3,999,999 to Roman numerals and back. Great for tattoos, chapters, and movie titles. Free, instant online converter with no sign-up.
Bionic Reading Formatter
Bold the first half of every word in any pasted text to create instant fixation points. Convert long articles for rapid reading free in your browser.
Word Frequency Counter
Paste any text to see the most common words, counts, and percentages. Filters stop-words optional.
Text Repeater
Repeat any text or character N times with optional separator. Handy for filler content, indentation, and test data.
Kebab Case Converter
Convert any text to kebab-case (dash-separated) or from kebab-case back to words. Includes slug-safe normalization.
Snake Case Converter
Convert any text to snake_case or back to words. Free online converter — safe for Python, DB columns, and env vars. Instant conversion in your browser.
Number to Words
Convert any number into written English words instantly, like turning 1,234 into 'one thousand two hundred thirty-four'. A free online tool for checks and invoices.
Acronym Generator
Turn any phrase into an acronym. Picks the first letter of each word, with optional vowel insertion to form a pronounceable word.
Blockquote Formatter
Wrap your selection in clean blockquote syntax for blog posts and threads instantly. Generate styled pull-quotes with proper citation free online.
Copy-Paste Deduplicator
Strip duplicate lines from any list with trim, case-sensitive, and preserve-order options. Free online text utility — no signup, deduplicate in seconds.
Mail Merge Helper
Paste a template with {{placeholders}} and a CSV to instantly generate merged output for each row. No upload, no signup — all processing happens in your browser.
Letterhead Template Builder
Build a print-ready letterhead with your business name, tagline, address, contact info, and accent color. Save as PDF in your browser.
Mailing Label Generator
Generate print-ready sheets of Avery-format mailing labels (5160, 5161, 5163, L7160) from an address list. Free, no-signup tool for instant label creation in your browser.
Fax Cover Sheet Generator
Create a sheet with sender details, urgency, page count, and HIPAA notice instantly online. No sign-up or download required.
Demand Letter Generator
Generate a formal demand letter for unpaid invoices, breach of contract, personal loan, security deposit return, or property damage. Educational template.
Cease and Desist Letter Generator
Generate a cease-and-desist letter for harassment, trademark/copyright infringement, defamation, debt collection, or neighbor disputes. Educational template.
Dispute Letter Generator
Generate a formal dispute letter for credit report errors (FCRA), billing disputes (FCBA), bank errors, medical bills, or unwanted subscriptions.
Envelope Formatter
Format envelopes correctly for US, UK, EU, CA, or AU standards online. Get print-ready #10 or DL layouts instantly — free tool, no sign-up.
Bibliography Formatter
Format books, journals, and websites into a flawless works-cited page instantly. Create APA 7, MLA 9, or Chicago 17 citations free in your browser.
Text Redaction Helper
Strip emails, phone numbers, SSN, credit cards, IPs, URLs, and dates from text before sharing. Toggle patterns, add custom regex. Browser-only.
Word Count by Section
Get total words, characters, paragraphs, sentences, and reading time — plus a per-section breakdown for any Markdown-formatted document.
Document Version Diff
Compare two versions of a document and see exactly what changed. Word-level or line-level. Browser-only — nothing uploaded.
Palindrome Checker
Check if any word, phrase, or sentence is a palindrome. Strict and relaxed modes. Free, runs in your browser.
Anagram Checker
Check whether two words or phrases are anagrams. Ignores case and punctuation. Free, browser-only.
Flip Text
Flip, reverse, or strikethrough your text using real Unicode symbols instantly. Works on social apps, free tool with no sign-up.
Sort Lines
Sort lines of text alphabetically, naturally (file‑2 < file‑10), by length, or shuffle. Free instant online tool with optional dedup and trim — no sign‑up needed.
Duplicate Line Remover
Deduplicate text lines with case-insensitive or strict modes online. Clean your lists instantly — a free tool with no sign-up or download needed.
Strikethrough Text Generator
Apply strikethrough, underline, double‑underline, overline, or slash using Unicode real text. Free online tool works instantly in your browser — pastes anywhere with no sign‑up.
Emoji Picker
Search and copy from 80 most-used emoji across 7 categories in your browser. Instant, free access with no account or download needed.
Writing & Content
View all writing & content →Write better, start a blog, grow an audience online.
Emoji Remover
Extract and remove emojis, flags, and skin-tone variants from text online. Handles ZWJ sequences — free, instant, browser-only tool with no sign-up.
Online Dictionary
Look up any English word. Definitions grouped by part of speech with example sentences. Free, no signup, powered by Wiktionary.
LaTeX to PNG
Type LaTeX math, render it with KaTeX, and download a transparent PNG for Word, Notion, Slack, or Google Docs. Inline or display mode, retina-quality.
Business Name Generator
Generate creative business name ideas from a seed word instantly online for free. Filter by style like modern, playful, or classic and brainstorm in your browser with no signup.
UTM Builder
Generate properly-tagged UTM URLs for email, ads, and social media in seconds. Validate parameters and copy the final link with one click, free and browser-only.
UTM Parser
Paste any URL to parse and instantly see utm_source, utm_medium, utm_campaign, and all query parameters in a clean table. A free tool with no registration required.
SERP Snippet Preview
Preview how your page looks in Google search results with live pixel-width limits instantly online. Check title, URL, and description free, no download.
Title Tag Length Checker
Verify if your title tag fits within Google's pixel limit. See a live preview for mobile and desktop results instantly, free with no registration.
Meta Description Length Checker
Test your meta descriptions against Google’s 160-character and 920-pixel limits with a live preview. A free, instant online checker with no signup needed.
Headline Analyzer
Analyze your blog and ad headlines to score length, power words, and emotional pull. Get instant, actionable tweaks to improve performance with this free online tool.
Ad Copy Length Checker
Check ad headlines and descriptions against Google Ads, Meta, and LinkedIn character limits. See progress bars per field.
Email Subject Line Tester
Test subject lines for length, spam triggers, and emoji safety online. Preview Gmail and iPhone rendering instantly — free tool, no sign-up required.
Alt Text Helper
Guide-based helper for writing good alt text — length limits, decorative vs functional check, and ready-to-paste output.
YouTube Thumbnail Downloader
Grab any YouTube video thumbnail instantly in max, HQ, or MQ size. Just paste the video URL to save public images privately — a free online downloader with no signup.
Tweet Thread Splitter
Split long articles into numbered 280-character tweets with smart sentence breaks — never mid-word. Free, instant, no sign-up required, runs in your browser.
Email Subject Line Analyzer
Check length, preview cutoff, spam-word flags, and all-caps percentage for any email subject before you hit send. Free, instant, no sign-up needed.
Call-to-Action Analyzer
Analyze CTA copy for length, action verbs, and urgency — get a 0-100 clarity score plus actionable tips. Free, instant, no sign-up needed in your browser.
Reading Grade Estimator
Estimate the Flesch-Kincaid grade level of any text passage. This syllable-aware tool runs client-side with no network calls, giving instant results for free.
Email Greeting Picker
Pick 3 greetings and 3 sign-offs tuned to relationship, time, and formality in one click. Free online tool — instant results, no registration.
Complaint Letter Generator
Generate a formal consumer complaint letter with order number, incident details, and resolution request. Free online generator — no signup, create in seconds.
Thank You Letter Generator
Versatile thank-you letter for interviews, gifts, referrals, or business favors — formal to warm tone.
Memo Generator
Create classic memorandums with TO/FROM/DATE/SUBJECT headers and block-format body instantly. A free online writing tool with no signup, ready in seconds.
Business Letter Generator
Generate a formal block-format business letter with sender, date, recipient blocks, salutation, body, and closing. Free, instant, no sign-up.
Letter of Intent Generator
Non-binding letter of intent for jobs, grad school, business purchases, or real estate. Block-letter format.
Apology Letter Generator
Sincere personal or business apology letter that models real accountability — no defensive phrasing.
Citation Generator
Generate APA 7, MLA 9, Chicago 17, and Harvard citations for books, journals, websites, and news. Free, instant, no sign-up needed in your browser.
Content Inventory Value Estimator
Estimate content library value across replacement cost, traffic-driven, and revenue-driven lenses. Free, instant, no sign-up needed in your browser.
Reading Time Calculator
Calculate the exact reading and speaking time for any text at adjustable speeds. Get instant online results with no signup — a free tool for writers and speakers.
Blog Title Generator
Generate 8 blog title candidates per click from 16 templates with random fillers and Google display-limit checks. Free, instant, no sign-up in your browser.
YouTube Subscriber Counter
Track your YouTube growth instantly with an animated subscriber counter and milestone projections. See when you'll hit Silver or Gold — free tool, no download required.
Unit Converters
View all unit converters →Length, speed, temperature, and more — no ads, no math.
Unit Converter
Convert length, weight, volume, area, speed, energy, and more with this free online tool. All common units in one place, no registration needed.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly. Live conversion as you type.
Length Converter
Convert length units: meters, feet, inches, miles, kilometers, yards. Fast, free, and mobile-friendly.
Speed Converter
Convert between mph, km/h, m/s, knots, and feet per second. Free online speed converter with live conversion and no ads — usable instantly in your browser.
Age Calculator
Calculate exact age in years, months, and days from any birth date to any target date.
Weight Converter
Convert between kilograms, pounds, ounces, grams, stones, and tons. Instant, free, mobile-friendly.
Time Converter
Transform time units between seconds, minutes, hours, days, weeks, months, and years instantly. Perfect for time logs and billing with no sign-up.
Area Converter
Convert between square feet, square meters, acres, hectares, square yards, square miles. Free, fast.
Volume Converter
Convert between liters, gallons (US/UK), cups, milliliters, pints, and cubic meters instantly online. A free converter with no sign-up, ready in your browser.
Data Size Converter
Convert between all data storage units, from bytes to petabytes, in both binary and decimal formats. Get instant results online, free, no signup.
Energy Converter
Convert between joules, calories, kilowatt-hours, and BTUs instantly in your browser. A free online tool with no sign-up or download required.
Fraction Calculator
Add, subtract, multiply, or divide fractions — with simplified results and mixed-number conversion. Free math tool.
Average Calculator
Paste a list of numbers and get the mean, median, mode, range, and sum. Free statistics helper.
Sample Size Calculator
Calculate the minimum sample size for any proportion at your chosen confidence level and margin of error. Finite-population correction. Free, no sign-up online.
Standard Deviation Calculator
Calculate sample (n−1) and population (n) standard deviation and variance side by side. Paste any list of numbers. Free, instant, browser-only, no sign-up.
P-Value Calculator
Convert any z- or t-statistic into a one- or two-tailed p-value instantly. Significance flagged at α = 0.10, 0.05, 0.01. Free online tool, no sign-up needed.
Correlation Calculator
Compute Pearson's r between two paired number lists, plus r² and the t-statistic for testing rho = 0. Free online calculator with verbal interpretation.
Scientific Notation Converter
Convert between decimal, scientific (a × 10ⁿ), and engineering (multiple-of-3 exponent) notation in one tap. SI-prefix friendly. Free, instant, no sign-up.
Equation Solver
Solve ax+b=0, ax²+bx+c=0, and ax³+bx²+cx+d=0 instantly. Free online solver with discriminant analysis and complex roots in a+bi form. No sign-up.
Derivative Calculator
Symbolic derivative for polynomials in x. Free online tool that accepts 3x^2 + 2x - 5 style input and returns f'(x) in pretty form instantly. No sign-up.
Vector Calculator
Calculate 2D and 3D vector math: magnitude, normalize, sum, dot, cross, and angle between. Built for physics and graphics work. Free, instant, no sign-up.
Projectile Motion Calculator
Calculate time of flight, range, max height, and impact velocity for 2D projectile motion under gravity. SVG trajectory included. Free, instant, no sign-up.
Matrix Determinant Calculator
Calculate determinants for square matrices 2×2 to 6×6 instantly. Direct formulas, Laplace expansion, singular detection. Free, no sign-up, browser-only.
Molar Mass Calculator
Calculate molar mass instantly from any chemical formula. Get an element-by-element breakdown, supports nested parentheses and hydrates, using IUPAC 2024 atomic masses online.
Molarity Calculator
Calculate molarity, mass, or volume of any solution using M = moles/liters. Built for lab prep and stoichiometry homework. Free, instant, no sign-up needed.
Dilution Calculator
Solve for any of C₁, V₁, C₂, V₂ using the dilution equation. Free online calculator that includes the solvent volume needed for the diluent. No sign-up.
pH Calculator
Convert between pH, pOH, [H⁺], and [OH⁻] at 25°C in one click. Color spectrum shows acidic, neutral, or basic instantly. Free, browser-only, no sign-up.
Date Difference Calculator
Calculate the exact number of days, weeks, months, or years between any two dates instantly. A free, private, and mobile-friendly online calculator.
Time Duration Calculator
Calculate the precise hours, minutes, and seconds between two times. Essential for timesheets and podcasts, available online for free with no download.
Prime Number Checker
Test any number for primality and find all its factors instantly in your browser. Free, no-registration tool for fast math checks.
Ratio Calculator
Simplify, compare, and scale ratios for recipes, mixing, or design work. This free online ratio calculator works instantly with no signup or download needed.
Random & Fun
View all random & fun →Coin flips, dice, and decision makers when you just need an answer.
Random Name Generator
Generate random first and last names in modern, classic, fantasy, or brand styles. A completely free online tool with no registration required, in seconds.
Random Number Generator
Generate random numbers in any range with or without duplicates. Perfect for draws and testing — this free online tool works instantly with no signup.
Online Coin Flip
Flip a virtual coin. Fair, fast, and animated. Flip one or many, with a running heads/tails tally.
Online Dice Roller
Roll dice online. Supports D4, D6, D8, D10, D12, D20, and custom sides. Roll multiple dice at once.
Yes or No Decision Maker
Can't decide? Get a random yes or no, or pick from a custom list of options. Free and private.
Age Gap Calculator
Enter two birthdays — see the age gap in years, months, and days. Works for couples, siblings, or any two people.
Age From Name
Predict the typical age of someone with a given first name, optionally filtered by country. Powered by Agify.io. Statistical curiosity, not a real detector.
Meme Text Formatter
Transform plain text into bold, italic, monospace, ✨aesthetic✨, and other Unicode styles instantly. A free online formatter with no signup — paste anywhere.
Decision Wheel
Type options, spin the wheel, get a random pick. Good for stalemates, lunch fights, and team icebreakers.
Meme Generator
Upload an image or pick a classic template, add top and bottom text, and export as PNG. Free, no-signup meme generator that works instantly on phone and desktop.
Username Generator
Generate clean, memorable usernames online with word pairs, random letters, or adjective-noun combos. Pick a style and length instantly, no sign-up required.
Random Emoji Generator
Generate random emojis from categories like faces, animals, and food. Copy a single one or a whole string instantly for free with no download needed.
Random Letter Generator
Generate random letters in uppercase, lowercase, or mixed case. Optionally avoid ambiguous pairs like O/0 — free to use online with no signup.
Random Word Generator
Generate random English words filtered by length or part of speech. Great for creative prompts and naming projects, this free tool works online with no signup.
Coin Flipper
Free animated coin flipper with run history. Cryptographically-secure randomness, not Math.random. Free, browser-only.
Joke Generator
Get 25 programming and dad jokes instantly with no API calls—just click for a free laugh online in your browser, no sign-up or download needed.
Career & Growth
View all career & growth →Interviews, résumés, promotions, and smart career moves.
Country Info Lookup
Look up any country's flag, currency, calling code, and languages instantly. Get free, in-depth data in seconds with no registration required.
International Calling Code Lookup
Search by country calling code like +1, +44, or +234 to find every country that uses it instantly online. Verify inbound calls and forms for free with no signup required.
Overtime Calculator
Calculate overtime pay with time-and-a-half, double time, and weekly/daily thresholds. US federal and many state rules.
PTO Calculator
Track your paid time off accrual per pay period and project your balance instantly. Free online tool for hourly and salaried setups, no sign-up.
Shift Scheduler
Schedule a weekly shift rotation for small teams instantly online for free. Print a clean schedule supporting fixed and rotating patterns, no sign-up.
GPA Calculator
Calculate your GPA from letter grades and credit hours using a 4.0 scale and common variants. Get instant, accurate results with this free, no-sign-up tool.
Grade Calculator
Calculate your final course grade or the exact score needed on your next exam to hit your target. Free, instant tool with weighted category support and no registration.
Email Signature Builder
Build an HTML email signature with your name, role, and social links online. Copy-paste into Gmail instantly — free tool with no sign-up or branding.
Certificate Generator
Pick a template, enter recipient name, event, and date. Export a high-resolution printable PNG or PDF. Free.
Business Card Designer
Create a two-sided business card with your name, role, and contact details instantly online. Export a print-ready PDF at 300 DPI for free with no downloads or signup.
Resume Skeleton Builder
Build a minimalist, ATS-safe resume by filling in fields. Export as HTML or print-ready PDF instantly, with no account and no upload required.
Cover Letter Builder
Build a formatted cover letter by answering a few quick prompts and export it as a PDF or text file instantly. Free to use, no signup needed.
Gift Certificate Maker
Create a printable gift certificate with a decorative border, recipient name, amount, and message in seconds. Free browser-only tool with no registration needed.
Resignation Letter Generator
Generate a formal resignation letter with tone options, last-day date, and transition-offer paragraph. Get an instant, free download with no sign-up required.
Recommendation Letter Generator
Generate a strong letter of recommendation highlighting specific strengths and examples. This free tool works instantly online for former employees or students, no signup.
NDA Generator
Create a one-way or mutual Non-Disclosure Agreement online. Fill in the parties and terms, then print or save as a PDF instantly—free with no sign-up required.
Freelance Contract Generator
Independent contractor agreement with scope, payment, IP ownership, and termination clauses. Print-ready.
Photo Release Generator
Generate photo and video release forms granting likeness rights, including a minor-consent block. Free, no-sign-up tool that works instantly in your browser.
Liability Waiver Generator
General event or activity waiver with assumption-of-risk, release of claims, indemnification, and emergency-contact blocks.
Vacation Day Optimizer
Plan PTO to get the longest breaks by finding the best days to request around public holidays. This free, no-download tool works instantly in your browser.
ACT to SAT Converter
Official ACT-SAT concordance conversion with percentile ranks. Both directions, full score range.
College GPA Projector
Project your final GPA from current credits and target. Instantly see required semester GPA for any goal with this free online calculator, no signup needed.
Semester GPA Target Calculator
Calculate the exact grade you need per class to hit your GPA target with 3 allocation strategies. Free instant tool in your browser, no sign-up.
Study Time Planner
Study hours needed for an exam by subject type, familiarity, and chapters. Pomodoro blocks + cramming warning.
Final Exam Grade Needed Calculator
Find the score you need on your final to reach a course goal instantly. Free tool shows alt-target tables, no sign-up.
CEFR Language Level Test
Self-assessment quiz mapping to A1-C2 European Framework level. 10 questions, description + next-level targets.
Research Paper Reading Time Estimator
Estimate how long it takes to read a research paper by density and method. Includes three-pass strategy tips, delivered free in your browser with no registration.
College Affordability Calculator
Calculate if you can afford a college. See annual gap, 4-year debt projection, and post-grad monthly payment vs entry salary in seconds free online.
FAFSA EFC / SAI Estimator
Get a rough Student Aid Index from parent income, assets, and household size. Free online estimator with no sign-up required.
Flashcard Study Time Estimator
Predict cards needed and hours of study for concepts with spaced-repetition scheduling. Free online tool, no registration.
Test Score Percentile Lookup
Percentile rank for SAT, ACT, GRE, GMAT, LSAT, MCAT, IELTS, TOEFL. Top 10% reference score.
YouTube Revenue Estimator
Calculate your total YouTube earnings online from ad revenue, memberships, and sponsorships based on monthly views. Includes niche-aware CPM modifiers — free and instant.
TikTok Creator Fund Calculator
Estimate your TikTok Creator Fund and Creativity Program payouts from monthly views instantly. Get honest, transparent numbers with no sign-up required.
Instagram Engagement Rate Calculator
Compute engagement rate from followers, likes, comments, and saves with tiered benchmarking instantly in your browser—no registration needed.
Twitch Subscription Revenue Calculator
Estimate your Twitch revenue from subs, bits, and ads with 50/50 or 70/30 splits. Get accurate numbers online in seconds with no registration.
OnlyFans Earnings Calculator
Estimate monthly OnlyFans revenue from subs, tips, and PPV with the 20% platform cut applied. Free instant calculator in your browser, no sign-up.
Sponsorship Rate Estimator
Estimate brand deal pricing by platform, follower count, engagement rate, and niche. Free online estimator gives low/mid/high ranges instantly — no registration needed.
UGC Rate Calculator
Estimate your rates as a UGC creator based on deliverables and usage rights. Factor in paid vs organic content pricing online for free in seconds.
Podcast CPM Calculator
Forecast podcast ad earnings from monthly downloads, ad slots, and CPM. See host-read premiums, all in a free online calculator with no sign-up.
Newsletter Revenue Calculator
Calculate your newsletter's revenue potential instantly. Project earnings across ads, paid subs, affiliates, and sponsorships. A free, no-sign-up online planner.
CAC / LTV Calculator
Calculate customer acquisition cost to lifetime value ratio instantly online for free. Check if your SaaS metric falls within a healthy 3-5x range in your browser with no registration.
SaaS Churn Rate Calculator
Calculate customer churn, gross MRR churn, and net MRR churn instantly. See if you hit net negative — growth without new sales. Free, no sign-up.
Net Revenue Retention (NRR) Calculator
Calculate your Net Revenue Retention (NRR) from expansion, contraction, and churn instantly. A free, online tool to gauge SaaS health with no sign-up needed.
Rule of 40 Calculator
Calculate growth rate plus profit margin to see if you pass the Rule of 40. A 40+ passes, 60+ is elite SaaS. Free instant tool, no sign-up.
CPM CPC CPA Converter
Convert between CPM, CPC, and CPA ad metrics instantly with a helpful funnel visualization and benchmarks. Free online tool, no registration.
ROAS (Return on Ad Spend) Calculator
Calculate ROAS ratio, break-even ROAS based on margin, and actual profit after spend. Get free, instant results in your browser with no registration.
SaaS Magic Number Calculator
Calculate (net new ARR x 4) / S&M spend instantly. Above 1.0 push more spend, below 0.5 slow down. Free browser-only tool, no sign-up needed.
CAC Payback Period Calculator
Calculate the months until CAC is recovered from margin-adjusted revenue instantly online. Evaluate if your payback is under 12 months for free in your browser with no signup.
Gross Margin Calculator
Calculate your gross margin percentage from revenue and COGS, and compare it against industry benchmarks for SaaS and ecommerce. Free instant tool with no sign-up.
MRR to ARR Converter
Convert between MRR, ARR, and quarterly revenue instantly. Includes customer and plan price modes for a complete view. A free online tool with no sign-up.
Recruiting Pipeline Tracker
Track your candidate pipeline with stages, source tagging, and CSV export. Data saves to your browser instantly with no account — a free tool for small teams.
Resume Keyword Match Scorer
Paste a job description and your resume to score keyword matches, see matched terms, and identify gaps. Free ATS pre-check with no sign-up, in seconds.
True Cost of Free Recruiting Tools
Stitching together free recruiting tools costs more than you think. This calculator surfaces the real 12-month cost — including time spent on workarounds and
Developer Tools Salary Estimator
Estimate base salary + total comp for developer tools / dev productivity engineering roles by level (junior to principal), company tier (FAANG, standard tech
GitHub Profile Scorecard
Evaluate your GitHub profile across 8 criteria that managers check, from pinned repos to commit cadence. Get your instant score with this free online tool.
Corporate Wellness ROI Calculator
Calculate annual ROI of employee wellness programs using RAND/HBR baseline reductions on sick days, claims, and turnover — free instant tool, no registration.
Ergonomic Desk Setup Checker
Enter your height to get target desk, chair, and monitor heights from OSHA/BIFMA ranges online. Instant ergonomic check — free, no sign-up needed.
Vacation Payout Calculator
Estimate your unused PTO payout after federal withholding, FICA, and state tax. This free tool provides instant calculations online with no registration needed.
Privacy Policy Generator
Build a customizable privacy policy template in seconds with toggles for cookies, analytics, and ads. Free online generator, no registration needed.
Terms of Service Generator
Customizable Terms of Service template. Toggle sections for accounts, paid plans, user content. Markdown output.
Relationships & Social
View all relationships & social →Friendships, hard conversations, and social skills that travel.
Dating App Bio Rater
Analyze your Hinge, Bumble, or Tinder bio to get an instant score out of 100 and actionable fixes for hooks, length, and cliches. Free, no signup.
Small Talk Question Generator
Generate five fresh open‑ended questions tuned to parties, work, dates, networking, and more. Free instant online generator — reshuffle anytime with no sign‑up.