CSS Minifier
Minify CSS code to reduce file size and improve load times.
CSS Input
Minified CSS
Minified CSS will appear here...
How to Use CSS Minifier
- Paste your CSS code into the "CSS Input" field, or click "Load Sample" to see an example
- The minified output appears instantly in the "Minified CSS" panel on the right
- Click "Copy" to copy the minified CSS to your clipboard
- Paste it directly into your stylesheet or HTML style tag
Frequently Asked Questions
What does CSS minification actually do?
Minification removes all whitespace, line breaks, comments, and unnecessary characters from your CSS without changing how it functions. A stylesheet that is 50KB can often be reduced to 30KB or less, which makes your web pages load faster.
Will minified CSS still work exactly the same as the original?
Yes. Minification only removes characters that browsers ignore — spaces, tabs, newlines, and comments. The actual CSS rules and values remain identical.
Should I minify CSS for every project?
Yes, for any production website. Smaller CSS files reduce bandwidth, improve page load speed, and contribute to better Core Web Vitals scores, which can improve your search engine rankings.
Can I minify CSS that contains variables, animations, or media queries?
Yes. Standard CSS minification handles custom properties (CSS variables), @keyframes animations, @media queries, pseudo-selectors, and all modern CSS features.
Front-end performance toolkit: