JavaScript Minifier
Paste your JavaScript and get a compact, minified version instantly. Remove comments and whitespace to reduce file size and improve page load performance
JavaScript CODE
Beautify Minify
Tip: paste JavaScript on the left — output updates instantly.
Runs 100% Locally in Your Browser
This tool processes your data entirely on your device. Nothing is uploaded, stored, or sent to any server.
No Uploads
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Frequently Asked Questions
What does JavaScript minification do to my script?
It removes comments, whitespace, and newlines to produce a smaller file that downloads and parses faster in browsers.
What is the difference between JavaScript minify and JavaScript obfuscate?
Minification removes whitespace to reduce size; obfuscation renames variables and scrambles logic to make code harder to reverse-engineer.
When should I minify JavaScript before deploying to production?
Always minify JS for production — smaller scripts improve page load speed, reduce bandwidth costs, and boost Core Web Vitals.
How much does minifying JavaScript reduce file size?
Savings vary widely; removing comments and whitespace alone can cut file size by 20–40% for typical scripts.
Does the JavaScript Minifier send my code to a remote server?
No. All minification runs locally in your browser — your script never leaves your device.