0
Original bytes
0
Minified bytes (0% saved)
⚡
You've used 10 free runs today
Upgrade to Pro for unlimited minification and no ads.
Upgrade to Pro – $9/moResets at midnight · Cancel anytime
Advertisement
How to use this tool
- Paste your JavaScript code into the input box above.
- Click Minify JS to compress it instantly.
- Copy the result or download as a
.jsfile. - Replace your original JS file with the minified version on your server.
Why minify JavaScript?
JavaScript is often the biggest performance bottleneck on web pages. Minifying removes comments, whitespace, and line breaks — reducing file size by 20–50% without changing functionality.
Google PageSpeed Insights specifically flags unminified JavaScript as a performance issue affecting your Total Blocking Time (TBT) and overall Core Web Vitals score.
Advertisement