DevUtils is a collection of 30 developer tools that run entirely in your browser — no backend, no accounts, no tracking.
Live: https://arasovic.github.io/dev-utilities/
- Shareable links for 15 of the tools — tool state lives in the URL
- Favorites and recent tools, persisted in your browser
⌘K/Ctrl+Kto search,⌘B/Ctrl+Bto toggle the sidebar- Dark mode
JSON Formatter · YAML Formatter · XML Formatter · HTML Formatter Markdown Previewer · Regex Tester · Diff Checker · SQL Formatter
Base64 · URL Encoder · JWT Decoder · JWT Encoder JSONP Tester · Gzip Calculator · Data URI Generator
UUID Generator · Hash Calculator · Lorem Ipsum · QR Code Barcode · Password Generator · Image Placeholder
Color Converter · Timestamp · Time Zone · Number Base Converter Cron Parser · Unicode Inspector · CSS Formatter · CSS Filter Generator
git clone https://github.com/arasovic/dev-utilities.git
cd dev-utilities
npm install
npm run devnpm test— run the test suitenpm run build— static production build, output inbuild/