Minify CSS by removing comments and unnecessary whitespace. Shrink stylesheets for faster page loads while preserving rule order and selectors.
Output will appear here.
Frequently Asked Questions
What does the CSS Minifier do?
It removes comments and extra whitespace to shrink file size — all processing runs in your browser.
Is this a full compiler?
No. It performs safe whitespace and comment processing. Complex syntax may need a dedicated build tool.
Will my code break?
Minification removes comments and spaces only. Always test output in your project before production use.
Need to beautify instead?
Use the CSS or JavaScript Beautifier on draft21.
Is this tool free and does it work on mobile?
Yes on both counts. The CSS Minifier on draft21 is completely free with no sign-up required and works on all devices.