Utils.
Single-file browser tools. No build step, no tracking, no servers. Fork any of them — they all run client-side.
tools
- Python Playground (WASM) Run Python code in your browser using WebAssembly (Pyodide). Includes NumPy, Pandas, and more.
- UUID Generator Generate UUIDs (v4) with one click. Includes batch generation.
- Base64 Encoder/Decoder Encode and decode Base64 strings. Includes file support.
- JSON Formatter & Validator Format, validate, and minify JSON. Data stays in your browser.