CSS Minifier
Minify your CSS code to reduce file size and improve loading performance. Includes auto-prefixer for better browser compatibility.
Minified CSS will appear here...
Minification
Remove comments, whitespace, and unnecessary characters to reduce file size.
Auto-Prefixer
Automatically add vendor prefixes for better cross-browser compatibility.
Download
Download the minified CSS as a .min.css file ready for production use.
Why Every Website Needs CSS Optimization
Faster loading times mean better user experience and higher search rankings. Our CSS minifier gives you the edge.
The performance boost you've been missing
I learned this the hard way when my client's e-commerce site was losing customers due to slow load times. A 2MB CSS file was killing their Core Web Vitals.
After minifying their CSS, we saw a 60% reduction in file size and a 40% improvement in First Contentful Paint. Sales went up 15% that quarter.
Real-world performance gains:
Pro tip: Always minify CSS for production, but keep the original formatted version for development and maintenance.
Perfect for Every Development Workflow
Production Deployment
- Compress CSS before pushing to production
- Reduce CDN bandwidth costs
- Improve Core Web Vitals scores
Framework Integration
- Optimize CSS for React/Vue/Angular builds
- Add vendor prefixes automatically
- Clean up generated CSS from frameworks
Frequently Asked Questions
Everything you need to know about CSS minification and optimization
CSS minification can reduce file size by 20-80% depending on your code style. Files with lots of comments, whitespace, and verbose formatting see the biggest reductions. Our tool typically achieves 40-60% compression on average CSS files.
No, CSS minification only removes whitespace, comments, and redundant code without changing functionality. However, our tool also adds vendor prefixes automatically, which actually improves browser compatibility for modern CSS properties.
Absolutely! Minified CSS loads faster, reduces bandwidth usage, and improves Core Web Vitals scores. Always use minified CSS in production while keeping the original formatted version for development.
While you can't perfectly reverse minification (comments are lost), our tool also offers CSS beautification to format minified code with proper indentation and spacing for better readability.
Ready to Optimize Your CSS?
Join thousands of developers who've boosted their website performance with our CSS minifier.