CSS Minifier
Compress your CSS by removing comments, whitespace, and unnecessary characters.
Compress your CSS by removing comments, whitespace, and unnecessary characters.
Paste your CSS code into the input textarea and click "Minify CSS." The tool strips out all comments, extra whitespace, newlines, and trailing semicolons before closing braces to produce the smallest possible output. The size reduction percentage is displayed so you can see exactly how much space you saved.
CSS files often contain comments, indentation, and blank lines that improve readability during development but add unnecessary bytes in production. Minified CSS loads faster, reduces bandwidth consumption, and improves Core Web Vitals scores. Even a few kilobytes of savings compound across thousands of page views, resulting in measurably faster websites.
/* ... */)All processing runs entirely in your browser using JavaScript. Your stylesheet is never sent to any server, making this tool safe for proprietary or sensitive code. No data is stored or logged.
Minify CSS as the final step before deploying to production. Keep the original, readable version in your source code repository and serve the minified version to users. Many build tools automate this, but this online tool is perfect for quick one-off tasks, debugging, or when you need to compress a snippet without setting up a build pipeline.