50 free privacy-first developer tools running entirely in the browser.
🌐 Live site: https://freedevtool.org
- 🔐 Privacy-first — all processing in browser, no upload
- 🚀 No signup, no tracking, no ads
- ⚡ Static HTML — works offline after first load
- 🌍 50+ tools across 8 categories
- Encoding — Base64, URL, Hex, HTML entities
- Generation — UUID v7, JWT, password, QR, hash
- Formatting — JSON, SQL, XML, YAML, Markdown
- DevOps — Cron parser, chmod calc, minifiers
- Network — IP lookup, DNS, HTTP status
- Code & Text — Regex, diff, AI token counter
- SEO — Meta tags, OG preview, slug generator
- Accessibility — WCAG contrast checker
- Vanilla HTML/CSS/JavaScript (no framework)
- Web Crypto API for cryptographic operations
- Hosted on Cloudflare Pages
- ~50 standalone HTML pages, single shared CSS
git clone https://github.com/Anees-Rao/freedevtool
cd freedevtool
# Open any .html file in browser — no build step required