JS Minifier & Beautifier
Minify JavaScript with Terser or pretty-print it for readability. Mangle names, drop comments and see how much smaller it gets.
- Runs in your browser
- No upload on server
- Free, forever
- Paste input
- Run
- Copy result
Output
How this works — and why it's private
- Minify uses Terser — the same compressor behind Webpack and Vite production builds.
- Beautify rebuilds indentation, spacing and line breaks for readable code.
- Your code never leaves your device. Everything runs locally in your browser.
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