What is this JavaScript Minifier?
This tool compresses your JavaScript code by removing unnecessary characters, spaces, comments, and long variable names. The result is the same code, but smaller and faster to load.
Why minify JavaScript?
Websites and apps rely heavily on JavaScript. Larger files mean:
- Slower page loading
- More bandwidth usage
- Lower SEO performance
Minification helps reduce file size (sometimes by 50–80%), which leads to:
- Faster site performance
- Better experience for mobile users
- Improved search engine rankings
What does minification do?
Example:
var isFriendly = true;
if (isFriendly) {
console.log('Hello world');
}
becomes:
var isFriendly=!0;isFriendly&&console.log("Hello world");
Same result – just smaller.
Minifying JavaScript is one of the simplest ways to optimize performance. Paste your JS code, click Minify, and instantly get a cleaner, smaller version.
FAQ
Yes, minification happens entirely in your browser.
No. Everything runs directly in your browser. Your code never leaves your device or gets saved on our server.
No. Minification removes whitespace, comments, and long variable names, but it does not change behaviour. Your code will run exactly the same after minification.

