Free Online CSS Minifier

$ _ ready RunDev

Minify CSS by removing whitespace, comments, and unnecessary characters to reduce file size.Updated 2026-03-11

Click output to copy
Ctrl+Enter Run   Ctrl+Shift+C Copy output

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How to Use

  1. Click Process or press Ctrl+Enter
  2. Paste your code or data into the input
  3. Check validation messages for issues
  4. Review output with syntax highlighting

FAQ

Which standards does it follow?

Follows the latest official specifications — RFC, W3C, or ECMA as applicable.

Is the output production-ready?

Yes, generates clean, standards-compliant output suitable for production use.

Can I integrate this into my workflow?

Bookmark for quick access. The URL updates with settings for sharing configurations.

What browsers are supported?

All modern browsers: Chrome, Firefox, Safari, Edge. Some features need recent versions.

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