Free CSS Minifier
Compress your CSS stylesheets for faster rendering and lighter pages.
Why Minify CSS?
CSS minification removes unnecessary spacing, indentation, and comments, making your stylesheets smaller and faster to download.
Benefits of CSS Minification
- Smaller Files: Removes whitespace, comments, and redundant rules.
- Faster Rendering: Browsers parse minified CSS faster.
Frequently Asked Questions
What does CSS minification do?
Minification removes whitespace, code comments, and redundant characters from CSS files, reducing file size without changing how the styles are applied in any browser.
How much can CSS minification reduce file size?
Typically between 20 and 40 percent smaller. Heavily commented or well-formatted stylesheets with lots of whitespace can see reductions exceeding 50 percent.
Is minified CSS harder to debug?
Yes. Minified CSS removes all formatting. This is why you should always maintain an unminified source file for development and only serve the minified version in production.
Should I minify CSS or use gzip compression?
Both. Minification reduces the raw file size. Gzip or Brotli compression then compresses the transfer. They stack: a minified file compresses better than an unminified one.
Does Sitecheck store my CSS?
No. All CSS processing happens in your browser using JavaScript. Your stylesheet is never sent to our servers.