Paste your full CSS code into the input textarea.
Click the Minify button to remove whitespace, comments, and unnecessary characters.
Review the file size savings displayed next to the output.
Copy the minified CSS for use in production builds.
All processing is client-side. Your data never touches any server.
No page reloads or server round-trips. Results appear as you type or paste.
No registration, no usage caps, no premium tiers. Use as much as you need.
Fully responsive. Works on desktop browsers, tablets, and mobile phones.
CSS minification removes all unnecessary characters from your CSS code — including whitespace, line breaks, comments, and extra semicolons — without changing how the styles work, resulting in a smaller file size.
No. Minification only removes non-essential characters and does not change any property names, values, selectors, or the cascade. The minified CSS behaves identically to the original.
Savings vary depending on how much whitespace and comments your CSS contains. Typical reductions range from 30% to 60%, and the tool shows your exact savings percentage after each minification.