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Curated list · 12 tools

Best AI + Dev Tools for Engineering Teams

Free + low-cost AI and developer tools that engineering teams actually use in 2026. ROI calculators for Copilot + AI consulting, profile scorecard, Actions cost estimator, idea validators, CLI checklist.

Curated May 2026
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Engineering managers and senior devs face a stack of buy-vs-build decisions in 2026 — Copilot, AI consultants, dev-tools sub-tier picks, GitHub Actions cost overruns. These twelve tools ground those decisions in real numbers instead of vendor pitches. Every tool runs in your browser, no signup, no upload.

The full list

  1. 01 · GitHub Copilot ROI Calculator

    GitHub Copilot ROI Calculator

    Annual ROI math for Copilot Business or Enterprise across your team size, hourly rate, and productivity-gain assumptions.

  2. 02 · GitHub Actions Cost Estimator

    GitHub Actions Cost Estimator

    Surprise-bill prevention for CI/CD. Add your workflows; see the monthly bill across Linux/Windows/macOS runners.

  3. 03 · GitHub Profile Scorecard

    GitHub Profile Scorecard

    Score your GitHub profile across 8 weighted criteria — what hiring managers actually check in a 90-second review.

  4. 04 · AI Consulting ROI Calculator

    AI Consulting ROI Calculator

    Payback + 3-year NPV for an AI consulting engagement. Defaults reference SHRM 2024 + public Workable/Greenhouse pricing.

  5. 05 · AI Tool Evaluation Scorecard

    AI Tool Evaluation Scorecard

    Score any AI vendor across 7 weighted criteria (privacy, integration cost, vendor stability, switching cost). Get a verdict before buying.

  6. 06 · AI Readiness Score

    AI Readiness Score

    Quick assessment of how prepared your team is for AI deployment — surfaces the gaps before vendor calls start.

  7. 07 · AI Cost Estimator

    AI Cost Estimator

    Estimate monthly LLM API spend across providers (OpenAI, Anthropic, Google, DeepSeek) at your volume.

  8. 08 · Developer Tool Idea Scorer

    Developer Tool Idea Scorer

    Validate dev-tool ideas against six weighted criteria before committing 6 months to a build.

  9. 09 · Developer Tools Salary Estimator

    Developer Tools Salary Estimator

    DevTools / DPE salary ranges by level, company tier, region. Sourced from levels.fyi + public pay-transparency data.

  10. 10 · CLI DX Checklist

    CLI DX Checklist

    16-item interactive checklist for building CLIs developers love. Distilled from clig.dev + 12-Factor CLI.

  11. 11 · AI Prompt Generator

    AI Prompt Generator

    Build structured prompts for engineering use cases — code review, documentation, system design, debugging assists.

  12. 12 · JSON Formatter

    JSON Formatter

    The JSON tool every engineer keeps Googling. Tidy, minify, validate — in your browser, no upload.

Buy-vs-build decisions, with numbers

The four buy-vs-build calculators here (Copilot ROI, AI consulting ROI, Actions cost, dev-tool idea scorer) are meant to be used together. Copilot ROI tells you if you should adopt at all; the consulting calculator scopes external help; the Actions estimator catches surprise CI bills; the idea scorer validates internal builds. All four use 2026 public pricing + benchmarks.

What this list intentionally excludes

Vendor-specific lock-in tools (Datadog, New Relic, Sentry's paid tier) — those have free tiers but the ROI math is different. Generic project-management tools (Linear, Jira) — important but not differentiated free vs paid for our analysis. Tools that auto-apply to jobs / generate code without review — net negatives.

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