JS Minifier

Minify and compress JavaScript code by removing whitespace and comments.

Remove commentsReduce sizeNo signup
Text stays on your device

Documentation

What is JS minification?

JS minification removes whitespace, comments, and unnecessary characters to reduce file size while keeping the code logic identical.

When do you need it?

For production websites, smaller JS files mean faster page loads and better Core Web Vitals scores.

How to use
  1. 1) Paste your JavaScript code into the input box.
  2. 2) Click the Minify button to compress.
  3. 3) Copy the result or download as a file.

FAQs

What is a JS minifier?

A JS minifier removes whitespace, comments, and unnecessary characters to reduce file size without changing functionality.

Why minify JavaScript?

Minified JS loads faster, reduces bandwidth, and improves website performance. Essential for production.

Does it change how JS works?

No. Minification only removes whitespace and comments. The code logic stays exactly the same.

Does this tool store my code?

No. All processing happens locally in your browser. Your code is never uploaded or stored.

Is it free?

Yes. The JS minifier is completely free with no signup or limits.

Privacy: All processing runs in your browser. Nothing is stored.