CSS Minifier
Free Online CSS Minifier
Reduce your CSS file size instantly with our free online CSS minifier. Minification removes unnecessary characters from your stylesheets such as comments, extra whitespace, and line breaks without changing the functionality of your code. Smaller CSS files load faster, improving your website's performance and user experience.
How to Use
Paste your CSS code into the input area above and click the "Minify CSS" button. The minified output will appear below along with statistics showing the original size, minified size, and the percentage of savings. Click the Copy button to copy the minified CSS to your clipboard, ready to use in your project.
FAQ
What does CSS minification do?
CSS minification removes all unnecessary characters from your stylesheet, including comments, extra whitespace, newlines, and redundant spaces around selectors and properties. The result is a smaller file that is functionally identical to the original.
Will minification break my CSS?
No. Minification only removes characters that have no effect on how browsers interpret your styles. The minified CSS will render exactly the same as the original in every browser.
How much space can I save?
Savings vary depending on how your CSS is formatted. Heavily commented and well-indented stylesheets often see reductions of 20-40% or more. The statistics panel above shows your exact savings after each minification.