Free JavaScript Minifier
Paste JavaScript code to remove whitespace, comments, and unnecessary characters. Get optimized output that loads and executes faster in the browser.
Lighter JavaScript, Faster Pages
JavaScript is often the largest resource on a web page. Minifying it reduces download size and speeds up parsing, which directly improves your Core Web Vitals scores and user experience.
Frequently Asked Questions
It strips out whitespace, comments, and unnecessary characters from your JavaScript code. The result runs exactly the same way but is significantly smaller.
Basic minification removes formatting only. Advanced minification (uglification) can also shorten variable names for even smaller output.
Yes. Minified code is difficult to read, so keep your original source files for debugging. Use source maps in production if you need to trace errors back to the original code.