Trust & safety
Safe by design, not by promise.
Free Tool Arena is built as a static site of small, single-file tools that run entirely in your browser. Nothing installs, nothing uploads, nothing tracks you across the web.
Runs in your browser
Every calculator and converter runs on your device. Your files and inputs never leave your computer.
No downloads needed
No installers, no executables, no browser extensions. Open the page — use the tool.
No sign-up, no ads-wall
No accounts, no email capture, no pop-ups in front of the thing you came for.
Safe & malware-free
Static site, no third-party trackers beyond privacy-friendly analytics. Scanned clean.
What we mean by “runs in your browser”
When you open a calculator, converter, or formatter on this site, the JavaScript for that tool downloads once and executes on your device. Your inputs (numbers, text, images, PDFs, audio) are processed locally. We don’t ship your data to a server, and there’s no backend queue, no file store, no “enterprise plan” where it starts going somewhere else.
A handful of tools — and these are clearly labeled — do make an outbound request because they have to. Examples: the IP Lookup tool asks a public IP API what your public IP is (it has to); the Public Holidays lookup queries a holidays API. These are documented on each tool page. No tool on this site uploads your files.
No downloads needed
You never have to install anything. No desktop app, no browser extension, no “open this .exe” step. Some tools produce a file you can save (a PDF you compressed, an image you cropped), but that file is generated in your browser and handed to your device’s save dialog — it’s not an installer.
If a download prompt ever appears that you didn’t trigger by clicking an explicit save button, that’s a bug — please tell us.
No sign-up, no email capture, no paywall
Every page here is available without an account. We don’t collect your email, we don’t run newsletter pop-ups in front of the tool, and we don’t gate features behind a paid tier. The tools are free because they’re small and cheap to host — not because there’s a bait-and-switch coming later.
What data we see
Three third parties help this site run. Each one sees a limited slice of your visit; here’s exactly what and how to opt out:
| Service | What it sees | Cookies? | How to opt out |
|---|---|---|---|
| Vercel Web Analytics | Page views, referrer, country, device type. No cross-site identity. | None | Browser privacy mode / DNT respected. See Vercel privacy. |
| Vercel Speed Insights | Anonymized page-load timings (TTFB, LCP, CLS). No user identity. | None | Browser privacy mode / DNT respected. |
| Google AdSense | Ad impressions, clicks, and whatever targeting signals Google uses to personalize ads (IP, user agent, approximate location, Google account if signed in). | Yes | Manage at adssettings.google.com, or use an ad-blocker (this site works without ads). |
The full legal breakdown, including data-retention periods and your rights under GDPR / CCPA, lives in our privacy policy.
We do not sell data. We do not have a data broker partnership. We do not have a “data science team” running experiments on your behavior. It’s a small site.
Malware, viruses, and scanning
Free Tool Arena is a static Next.js site deployed on Vercel. There’s no user-generated upload path, no executable distribution, no PHP stack — the most common vectors for drive-by malware simply don’t exist here. If your antivirus or browser ever flags a page, please send us the exact URL and the warning text so we can investigate.
Honest limits
Because processing happens in your browser, very large files can slow down your device. A 500MB PDF merged with a 500MB PDF is a lot to ask of a phone. If a tool feels slow, it’s almost always because your device is doing the work — not because we’re throttling you.
Our guides are opinionated. They are not financial, legal, medical, or tax advice. We try to be accurate and we cite where it matters, but treat every how-to as a starting point, not a prescription.
Reporting an issue
Found a bug, a wrong number in a calculator, a broken link, a claim that doesn’t hold up? Contact us. We read every message.
Last reviewed June 2026. Every claim on this page is reassessed when the site is reviewed end-to-end.