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CSS Minifier

Paste your CSS, minify it, and copy the result. Runs fully in your browser.

Minify CSS

Removes comments and extra whitespace.

Input CSS
Minified Output

Guide

CSS minification removes whitespace and unnecessary characters to reduce file size. Smaller CSS loads faster and can improve page performance.

Best practices

  • Keep an unminified source file for editing.
  • Minify for production builds only.
  • Test after minifying if you use complex hacks or legacy browser workarounds.

CSS tutorial