CSS Minifier - Compress CSS Files for Faster Page Loads

Minifying CSS is a standard optimization step for production websites. It removes comments, whitespace, and unnecessary characters without changing any styling behavior - making files smaller and faster to download.

What Gets Removed

• All comments (/* ... */)
• Unnecessary whitespace and line breaks
• Redundant semicolons
• Leading zeros in decimal numbers (0.5px becomes .5px)
• Units on zero values (0px becomes 0)

How Much Does It Save?

Typical CSS minification reduces file size by 30-60%. A 100 KB unminified stylesheet often becomes 40-50 KB after minification. Combined with Gzip or Brotli compression, savings can exceed 80%.

Minify vs Compress

Minification is a preprocessing step (remove unnecessary characters). Compression (Gzip/Brotli) is applied by the web server at runtime. You should do both: minify your CSS, then let your server compress it.

Free CSS Minifier

Use SnapSum CSS Minifier - paste your CSS, get the minified version instantly. Option to preserve comments if you need them. 100% browser-based, no file upload.