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What is CSS Beautify/Minify?
CSS Beautify/Minify is a free online tool that formats messy CSS into clean, organized stylesheets — or compresses them to the smallest possible size for production. It handles modern CSS features including custom properties, nesting, media queries, and keyframe animations. Everything runs locally in your browser.
How to use CSS Beautify/Minify
1
Paste your CSS code
2
Click Beautify for organized output or Minify for production
3
Choose your preferred indentation style
4
Copy or download the result
Common use cases
- Cleaning up CSS from website inspectors or generated code
- Reducing CSS file size for faster page loads
- Standardizing formatting across a design system
Frequently Asked Questions
Does it support CSS custom properties?
Yes — CSS variables (--custom-property), nesting, and all modern CSS features are fully supported.
Will minifying break my responsive styles?
No. Media queries, container queries, and all at-rules are preserved correctly during minification.
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