JavaScript Minifier

Minify JavaScript online for small snippets and quick cleanup. Paste JS code, remove comments and extra whitespace, then copy compact JavaScript from your browser.

1. Paste JavaScript

Add the JS snippet or function you want to compress.

2. Minify code

The tool removes comments and unnecessary spacing instantly.

3. Copy JS

Copy the minified JavaScript for demos, notes, or quick tests.

Original

102 B

Minified

86 B

Saved

16 B (16%)

JavaScript input

Minified JavaScript

function greet(name){const message="Hello,"+name;console.log(message);return message;}

This lightweight browser minifier is designed for snippets and quick cleanup. For production bundles, keep using a build tool.

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When to use JavaScript Minifier

JavaScript Minifier is useful when you need to complete a common developer tools task quickly, compare results, prepare clean output, or avoid opening a heavy desktop app for a small job.