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TateLyman
TateLyman

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100 Free Developer Tools Built in One Session — All Browser-Based

I just hit 100 new tools built in a single coding session on DevTools.run. 252 static pages total, plus 990 crypto price pages.

Every tool runs 100% in your browser. No accounts, no tracking, no backend.

Highlights

Just Shipped:

  • GitHub Actions Generator — CI/CD workflow templates (Node, Python, Docker, Vercel)
  • .env File Generator — Templates for Next.js, Express, Django, React, Rails
  • API Key Generator — Stripe/OpenAI/GitHub/AWS style keys
  • Regex to English — Explain any regex in plain language
  • TypeScript Playground — Write and run TS in browser
  • CORS Tester — Check CORS headers for any URL
  • JSON Schema Generator — Generate schema from JSON data
  • Webhook Tester — Send HTTP requests with custom headers/body

All-Time Favorites:

  • CSS Grid Generator, Flexbox Playground, Glassmorphism
  • JSON Formatter, Regex Tester, JWT Decoder, Base64
  • Resume Builder, Invoice Generator, Password Generator
  • Nginx Config, Docker Compose, .htaccess Generator
  • 990 crypto price conversion pages with live CoinGecko data

Numbers

  • 252 static pages
  • 570 converter pages
  • 992 price pages
  • ~1,814 total URLs
  • 5 free API endpoints
  • Chrome extension (50+ tools in toolbar)

All free forever: devtools-site-delta.vercel.app

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