CSS Minifier - Free Online Tool | PivaBox

Minify CSS by removing whitespace, comments, and redundant rules to reduce file size

How to Use CSS Minifier

1. Paste your CSS code into the input area
2. Click Minify to compress the CSS by removing whitespace and comments
3. View the size savings and copy the minified CSS for use in production

Frequently Asked Questions

Is CSS Minifier free?

Yes, PivaBox CSS Minifier is completely free to use. All processing is done in your browser.

Are my CSS codes uploaded to a server?

No. All CSS minification is done locally in your browser. Your code never leaves your device.

How much can I reduce file size?

Typically CSS files are reduced by 30-60% depending on how much whitespace and how many comments the original code contains. The tool also optionally removes the last semicolon in each rule block and shortens color codes like #ffffff to #fff when possible.