JavaScript Minifier

Minify JS to reduce file size โ€” free, private, runs entirely in your browser.

Input JavaScript

Minified Output

Why minify JavaScript?

Minifying JS removes comments, extra whitespace, and shortens code โ€” typically reducing file size by 20โ€“60%. Smaller bundles mean faster page loads and better Core Web Vitals scores, directly improving SEO and user experience.

How does it work?

This tool strips single-line and multi-line comments, collapses whitespace, and removes unnecessary semicolons and newlines. For production use, consider a full minifier like Terser or UglifyJS that also handles variable renaming.