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CSS Minifier

CSS Minifier

Minify CSS online by removing comments and unnecessary whitespace. Paste your CSS, click minify, then copy or download the result.

Removes CSS comments and extra whitespace Copy and download minified CSS Import CSS from URL or file Theme switcher Fullscreen editor mode

Input CSS

Paste your CSS here

Minified Output

Copy or download the minified CSS

Key Features

  • Removes CSS comments and extra whitespace
  • Copy and download minified CSS
  • Import CSS from URL or file
  • Theme switcher
  • Fullscreen editor mode

How to Use

  1. Paste your CSS into the input editor.
  2. Click Minify to reduce CSS size.
  3. Copy or download the minified CSS output.

Online CSS Minifier - Compress CSS Code

Reduce CSS file size and improve page load times with our powerful online CSS minifier. Remove unnecessary whitespace, comments, and redundant code while maintaining full functionality. Perfect for web developers optimizing production websites. No installation required—minify CSS in seconds directly in your browser.

Professional CSS minification features

  • Remove whitespace: Eliminate unnecessary spaces and line breaks
  • Strip comments: Remove CSS comments from production code
  • Compress selectors: Optimize selector formatting
  • Preserve functionality: Maintain all CSS behavior and specificity
  • Size reduction: Typically reduces file size by 15-40%
  • Copy and download: Export minified CSS instantly
  • Before/after comparison: See exact file size savings

Common use cases for CSS minification

Use our CSS compressor to optimize production websites, reduce bandwidth usage, improve page load speed, and decrease server storage requirements. Developers use this tool to minify CSS stylesheets before deployment. Combine with our CSS beautifier for development and HTML minifier for complete optimization.

Why developers choose our CSS minifier

  • Free, no signup or installation needed
  • Works on all devices and modern browsers
  • Handles large CSS files efficiently
  • Real-time compression with instant preview
  • Browser-based—your code stays private

Start minifying CSS now with our free online CSS minifier. Trusted by developers worldwide for website optimization and performance improvement.

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