Free Developer Tool

CSS Minifier & Beautifier

Compress CSS to reduce file size and improve page load speed. Also beautify minified CSS for readability. See exact bytes saved instantly.

✓ Remove comments✓ Remove whitespace✓ Beautify mode✓ Shows savings✓ No signup
CSS Input
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Output CSS
Output ready to paste or download
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Why Minify CSS?

⚡ Faster Load Times

Minified CSS is smaller so browsers download it faster, directly improving your Core Web Vitals score.

📦 Less Bandwidth

Smaller files mean lower hosting costs and reduced data usage for mobile visitors on limited plans.

🔍 Better SEO

Google uses page speed as a ranking factor. Minifying CSS is a quick win for improving your PageSpeed score.

🗜️ Typical Savings

CSS files are usually 20–40% smaller after minification. Combined with gzip, savings can reach 70–80%.

🔄 Beautify for Editing

Got minified CSS from a library? Use Beautify mode to format it back to readable code before editing.

💡 Best Practice

Keep the original source CSS for development. Deploy only the minified version to production servers.