Compress CSS for production or format it for readability. All processing runs locally.
Input CSS
Output
Original:0 B
Minified:0 B
Saved:0%
How to Use
Paste your CSS code into the input area on the left.
Click Minify to compress (remove whitespace, comments) for production.
Click Beautify to format CSS with proper indentation for readability.
Check the stats bar to see original size, minified size, and savings percentage.
Click Copy Output to copy the result to your clipboard.
Frequently Asked Questions
What is CSS minification? — CSS minification removes unnecessary characters (spaces, newlines, comments) from CSS files without changing functionality. This reduces file size and improves page load speed.
How much can CSS be compressed? — Typically 20-40% reduction. Well-commented CSS with lots of whitespace can see up to 50% savings.
Is my CSS sent to a server? — No. All processing happens in your browser using JavaScript. Your CSS never leaves your device.
Will minification break my CSS? — No. The minifier only removes whitespace and comments. It preserves all selectors, properties, and values.
Should I minify CSS in development? — No. Keep readable CSS during development for easier debugging. Minify only for production builds.