Is the CSS minifier free?

Yes, completely free with no signup required.

All minification and beautification runs in your browser using JavaScript. Your file never leaves your browser.

What does CSS minification do?

CSS minification removes comments, extra whitespace, newlines, and redundant semicolons to reduce file size without changing functionality.

Typical CSS files are reduced by 20–40%. Files with many comments and verbose formatting can see higher savings.

No. Minification only removes whitespace and comments — it never changes selectors, properties, or values.

Minify or beautify CSS instantly in your browser. Removes comments and whitespace to shrink file size.

🔒 Your file never leaves your browser. All processing runs locally.

Input CSS

Output

1
Paste your CSS
Paste or type your CSS code in the input box.
2
Choose Minify or Beautify
Click Minify to compress the CSS, or Beautify to format with consistent indentation.
3
Copy the result
The output appears on the right. Click Copy to copy it to your clipboard.