Free JavaScript Minifier Online
Compress your JavaScript code to reduce file size and improve load times. Safe client-side minification.
Input JS
Minified Output
How to Use
Paste Code
Enter your JavaScript code or upload a .js file
Minify
Click the button to compress your code
Check Savings
See how much size was reduced
Export
Copy or download the minified file
Frequently Asked Questions
Why minify JavaScript?
Minification removes unnecessary characters like whitespace, newlines, and comments. This significantly reduces file size, leading to faster download times and improved page load speed for your users.
Is this tool safe for sensitive code?
Yes. This tool runs entirely in your browser using client-side code. Your JavaScript files are never uploaded to any server.
Does it obfuscate the code?
This tool focuses on minification (compression) rather than obfuscation. While minified code is harder to read, variable names are preserved in this lightweight version to prevent breakage of code that relies on specific names or scopes.