Input JavaScript
Minified Output
Paste your JavaScript code into the left editor
Choose options like comment removal
Click Minify and copy the compressed output
Check the stats to see how much space you saved
Your code never leaves the browser. No server upload, no logging of your code.
Strips single-line (//) and multi-line (/* */) comments including JSDoc blocks.
Removes spaces, tabs, and newlines while preserving string contents.
Shows original size, minified size, bytes saved, and percentage reduction.
JavaScript minification removes whitespace, comments, and line breaks without changing functionality, reducing file size and improving page load speed.
No. All minification happens entirely in your browser. Your code never leaves your device.
Minification typically reduces file size by 20–60%. Combined with server-side gzip compression, total savings can exceed 80%.
Yes. Minifying JS is standard for production. Modern build tools (webpack, Vite) do this automatically. This tool is ideal for quick, one-off minification.
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