The all-in-one developer toolkit - offline-first, open source.
12 essential developer utilities. Zero installs. Zero backend. Works completely offline.
| Tool | Description |
|---|---|
| JSON Formatter | Format, validate & minify JSON with live status |
| Regex Tester | Live match highlighting, group extraction, replace |
| Color Converter | HEX/RGB/HSL + palette generator + WCAG contrast |
| Markdown Preview | Live split-pane editor with instant rendering |
| CSS Gradient Builder | Visual gradient creator with CSS output & gallery |
| Base64 Codec | Encode/decode text + drag-and-drop file support |
| Hash Generator | SHA-1, SHA-256, SHA-384, SHA-512 via WebCrypto |
| UUID Generator | Bulk UUID v4 with uppercase/no-dash options |
| Password Generator | Configurable with live strength meter |
| Text Diff Viewer | LCS-based side-by-side diff with stats |
| URL Encoder | Encode, decode & fully parse URLs |
| JWT Decoder | Inspect header, payload, expiry & algorithm |
# Clone
git clone https://github.com/cloudgrids/tools.git
cd tools
# Install (uses pnpm)
pnpm install
# Run locally
pnpm devOpen http://localhost:3000 and you're done. No environment variables. No API keys. No config.
Contributions are what make open source amazing. Any contribution you make is greatly appreciated.
MIT © tools Contributors
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