JavaScript Minifier

JavaScript minification removes unnecessary characters like comments, extra whitespace, and newlines from your code without changing its functionality. This reduces file size for faster page loads.

Typical savings range from 20% to 60% depending on how much whitespace and comments your code contains. The tool shows exact before/after sizes and the compression percentage.

This tool performs safe minification by removing comments and collapsing whitespace. It preserves string literals and regular expressions. For production use, always test your minified code.

Yes! All processing happens entirely in your browser. Your JavaScript code is never sent to any server. No data is collected, stored, or transmitted.

Both single-line comments (//) and multi-line block comments (/* */) are removed. Comments inside string literals are preserved since they are part of the string value.