CSS Input

Paste CSS and click Minify CSS.

Minified CSS Output

Original Size 0 B
Minified Size 0 B
Reduction 0%

What Is A CSS Minifier?

A CSS minifier compresses CSS by removing whitespace, comments, line breaks and unnecessary formatting characters. Minified CSS files are smaller and help websites load faster.

Why Minify CSS?

Improve Website Speed

Smaller CSS files load faster and improve overall page performance.

Reduce Bandwidth Usage

Compressed CSS reduces the amount of data transferred to visitors.

Better Mobile Performance

Minified CSS helps pages load faster on slower mobile connections.

Production Optimisation

Most production websites minify CSS before deployment.

Improved Core Web Vitals

Smaller CSS can improve page rendering performance metrics.

Cleaner Delivery

Minified CSS removes unnecessary formatting while preserving functionality.

What Does This CSS Minifier Remove?

  • Whitespace
  • Line breaks
  • Extra spaces
  • Standard CSS comments
  • Unnecessary semicolons

Frequently Asked Questions

Is this CSS minifier free?

Yes. This CSS minifier is completely free to use online.

Does this tool upload my CSS?

No. CSS processing happens locally in your browser using JavaScript.

Will minifying CSS break my website?

Proper CSS minification preserves functionality while reducing file size.

Can I minify large CSS files?

Yes. You can paste or upload CSS files directly into the tool.

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