Developer•Free tool
CSS Minifier – Minify CSS Online Free
Minify CSS by removing comments, whitespace and newlines. See the size saved and copy or download the compact stylesheet.
No sign-upBrowser-based
DEV
Tool
Enter your values and get results instantly.
HOW
How to Use
- 1Paste your CSS in the input box\n2. The minified output appears instantly\n3. Check the size reduction\n4. Copy or download the result
WIN
Benefits
Instant minification
Removes comments and whitespace
Shows size saved
Copy or download output
Runs entirely in your browser
FAQ
Frequently Asked Questions
What does CSS minification do?
It removes comments, whitespace, line breaks and trailing semicolons where safe, shrinking the file for faster page loading.
Will the minified CSS still work?
Yes — the rules and values are preserved exactly. Only safe-to-remove characters are stripped.
Why is a smaller CSS file important?
Smaller files download faster, which improves page speed and Core Web Vitals, especially on mobile connections.