GuestGUEST
10 uses remaining
Minify and compress CSS stylesheets by removing whitespace and comments to reduce file size and improve load speed.
GuestGUEST
10 uses remaining
CSS Compressor is a free online tool that minifies CSS stylesheets by removing whitespace, comments, and unnecessary characters to reduce file size.
The compressor strips CSS comments, collapses all whitespace, removes spaces around selectors and properties, and eliminates redundant characters — all processed in your browser.
Paste your CSS
Paste formatted or readable CSS code into the input editor.
Compress
Click "Compress CSS" to remove whitespace, comments, and redundant characters.
Review output
The minified output is displayed with file size before and after comparison.
Copy or download
Copy the compressed CSS to embed directly in your HTML or download it for your production build.
Production Deployment
Minify CSS before deploying to production to reduce page load times and improve Core Web Vitals scores.
Website Performance
Compress stylesheets to cut bandwidth usage and speed up rendering on mobile connections.
E-Commerce Sites
Reduce CSS file sizes on Shopify, WooCommerce, or custom stores to improve conversion rates through faster loads.
Email Templates
Compress inline CSS in HTML email templates to keep email file size within spam filter limits.
Build Pipeline Fallback
Quickly minify a single CSS file without setting up webpack or a build tool for small projects.
Mobile-First Optimization
Reduce CSS payload for mobile users on slower connections where every kilobyte counts.
Removes Comments & Whitespace
All comments and redundant whitespace are stripped, reducing CSS file size by 20–50% on typical stylesheets.
Shows Exact Size Reduction
The tool displays the percentage saved so you know exactly how much bandwidth the minification will save.
100% Browser-Based
All compression runs locally — no upload, no server, no privacy concerns for proprietary stylesheets.
No File Size Limits
Compress any size stylesheet in your browser without hitting server upload limits.
One-Click Copy
Copy the minified CSS directly to your clipboard for immediate use in your codebase or deployment.
Free — No Account Required
No registration or subscription needed. Compress as many stylesheets as you want for free.
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All processing happens directly in your browser. Your documents are never sent to any server — complete privacy guaranteed for users in the USA, Canada, UK, and worldwide.
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