How do I beautify CSS?

Paste your CSS and click Format CSS. The tool expands blocks, indents declarations, and keeps nested at-rules readable.

How does minification work?

Click Minify CSS to remove comments, extra whitespace, and unnecessary spacing while preserving valid CSS structure.

No. This tool runs fully client-side, so your CSS is processed locally in your browser.

CSS Minifier & Formatter - Beautify and Compress CSS

Input CSS

Output CSS

Auto-prefix tip (informational)

For broad browser support, run production CSS through PostCSS + Autoprefixer in your build pipeline. This tool focuses on formatting and minification only.

Lint Hints

Run Lint Hints to analyze your CSS.

FAQ

Can this tool fix invalid CSS automatically?

It provides lightweight lint hints and formatting/minification, but it does not perform full syntax repair. Fix parse errors in your source first for best results.

Does minification remove all comments?

Yes, regular comments are removed. The output is compacted to reduce bytes while preserving CSS behavior.

Can I use this on mobile?

Yes. The layout is responsive and works on phones, tablets, and desktop browsers.