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CSS Minifier & Compressor

Compress and optimize your CSS by removing whitespace, comments, and shortening values. Reduce file size for faster websites.

589Boriginal
388Bminified
-34%saved
201Bremoved
34% reduction
Options
Original CSS
Minified CSS
.container{max-width:1200px;margin:0 auto;padding:0 20px;background-color:#fff}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid #eee;color:#333}.header h1{font-size:24px;font-weight:700;color:#111;margin:0}.nav a{font-size:14px;color:#666;text-decoration:none;margin-left:24px;transition:color 0.2s ease}.nav a:hover{color:#000}

What is CSS Minification?

CSS minification removes all unnecessary characters from your stylesheet without affecting how it works in the browser — comments, whitespace, redundant semicolons, and long hex color values are optimized. This reduces the CSS file size, which means browsers download and parse it faster.

CSS Minification vs CSS Compression

Minification modifies the raw CSS source to make it smaller. Compression (like Gzip or Brotli) is an additional step applied by your web server. You should do both: minify first, then let your server compress the already-minified file for maximum performance.

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Frequently Asked Questions

Everything you need to know about using the CSS Minifier.

CSS minification removes all characters from your stylesheet that are not needed for it to function — whitespace, comments, redundant semicolons, and verbose values like #ffffff (which can be shortened to #fff). The result is a smaller CSS file that browsers download and parse faster.