CSS Minifier

Minification removes all unnecessary characters from CSS code without changing how it works: comments, whitespace, line breaks, and the last semicolon before a closing brace. The result is a smaller file that the browser downloads faster, improving site performance.

This tool performs a safe regex-based minification that preserves valid syntax: it only removes whitespace, comments, and redundant semicolons. For complex CSS with special hacks or non-standard syntax, always verify the result. It processes everything locally in your browser, so your code is never sent to a server.

The Beautify mode does the opposite of minification: it takes compressed or messy CSS and reformats it with consistent indentation, line breaks, and spacing. It is useful for reading, understanding, and editing third-party CSS or code you previously minified and want to make readable again.

Minifying CSS strips spaces, line breaks, comments and redundant semicolons, leaving the rules untouched. The stylesheet keeps working but weighs fewer bytes, so it downloads sooner.

No. Minifying and formatting happen inside the browser, on the text pasted into the page. The code is not uploaded anywhere and the result is copied from the output box.

Format mode does the opposite of minifying: it puts the CSS back over several lines with indentation, so a compressed stylesheet becomes readable again and can be edited or compared rule by rule.