JavaScript Minifier

Minify JS scripts by stripping comments, newlines, and unnecessary spaces.

Formatted JS Input

Minified JS Output (69 chars)

function hello(name){if(!name){return 'world';}return 'Hello '+name;}

About JavaScript Minifier Tool

Published: July 27, 2026Last Updated: July 27, 2026

Our JavaScript Minifier shrinks JavaScript file sizes by stripping code comments, blank lines, and unnecessary spaces.

Key Features

Strips line comments and block comments.
Removes redundant whitespace.
Shows compression percentage.

How to Use the Tool

Paste raw JS code into the editor.
Click 'Minify JS'.
Copy the compressed code output.

Core Benefits

Reduces HTTP payload sizes.
Speeds up initial page execution time.

Common Use Cases

Preparing JS files for production builds.
Minifying inline script tags.

Pro Tips

Ensure code statements end with semicolons for seamless minification.

Optimize your JavaScript code with our free JS minifier.

Frequently Asked Questions (FAQ)

Basic minification preserves variable names while removing whitespace. For name mangling, use obfuscation.

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