Paste your CSS and compress it instantly. Removes comments, whitespace and newlines. Everything runs in your browser — nothing uploaded.
CSS minification removes all characters that aren't required for the browser to correctly interpret and render your styles — including comments, whitespace, newlines and redundant semicolons. The result is functionally identical CSS in a much smaller package.
Smaller CSS files mean faster page loads. Every byte saved reduces transfer time, especially on mobile connections. Many production build tools like webpack, Vite and Parcel minify CSS automatically — but this tool is useful for quick one-off compressions or checking how much can be saved.
Block comments (/* ... */), leading and trailing whitespace, newlines between rules, spaces around colons and semicolons, and the final semicolon before a closing brace. The CSS logic is fully preserved.
Yes — that's why you should keep your original formatted CSS in source control and only deploy the minified version. Browser DevTools show computed styles regardless, and source maps can link minified production code back to readable source.