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Dev.to
6/20/2026
I Built 18 Free Developer Tools - Here's What I Learned

I Built 18 Free Developer Tools - Here's What I Learned

Short summary

Developer launches DevTools Hub, a free collection of 18+ browser-based utilities (JSON formatter, image converter, password generator, etc.) built with Next.js and FastAPI. All data processing happens client-side for privacy. Includes tech stack breakdown and roadmap for additional tools like API testers and code formatters.

  • •18+ free developer tools with privacy-first design—data never leaves your browser
  • •Built with Next.js 14, React 18, FastAPI, Tailwind CSS; deployed on Vercel with <100ms load times
  • •Author shares tech stack rationale and planned additions (API testing, WebSocket tester, SSL checker)

Generated with AI, which can make mistakes.

#product-launch
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