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 Nu