CSS Minifier

Compress CSS by removing whitespace, comments and redundant declarations

Input CSS
Minified Output
Original
Minified
Saved
Ratio

About This Tool

The free CSS minifier compresses stylesheets by removing whitespace, newlines, comments, and redundant semicolons. This reduces CSS file size, directly improving page load performance and Core Web Vitals scores. Exact byte savings and percentage reduction are shown after each minification.

Common Use Cases

Frequently Asked Questions

Yes. Minified CSS removes only whitespace, comments, and redundant characters — the browser renders it identically.
Typically 20-40%. Heavily commented stylesheets can see 50%+ reduction.
Yes. Combine CSS minification with server-side gzip or Brotli compression for maximum size reduction.