Minify CSS to reduce file size and improve load time
Free online CSS minifier. Remove whitespace, comments, and redundant characters from CSS files to reduce size and speed up page loads. Works entirely in your browser.
CSS minification removes all whitespace, comments, and unnecessary characters from CSS without changing how it works. This reduces file size, making pages load faster.
Typical savings are 20–40%. Well-formatted CSS with many comments and indentation can see savings of 50% or more.
Minified CSS is valid but hard to read. Use the CSS Formatter tool to beautify it back into readable form.
Yes. For best performance, serve minified CSS and enable gzip or Brotli compression on your server. These two combined can reduce CSS to 5–10% of the original size.
Yes. All processing happens in your browser. Your CSS is never sent to a server.
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Last updated: January 2025