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CSS Minifier

Minify and compress CSS code instantly

Free online CSS minifier tool to compress and minify your CSS code. Remove whitespace, comments, and optimize CSS for production. Works entirely in your browser - no server upload required.


How to minify CSS?

Minifying your CSS is straightforward:

  • Paste your CSS code into the input box.
  • Click 'Minify CSS' or see the result update automatically.
  • Copy the minified CSS code.
  • Use the minified version in production for faster page loads.

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Why minify CSS?

Minifying CSS reduces file size by removing unnecessary whitespace, comments, and sometimes shortening property names. This results in faster page load times, reduced bandwidth usage, and better user experience. Production websites should always use minified CSS.

Benefits of CSS minification

  • Smaller file size: Reduce CSS file size by 30-50% typically.
  • Faster loading: Smaller files download faster, improving page speed.
  • Better performance: Reduced bandwidth usage benefits both users and servers.
  • SEO improvement: Page speed is a ranking factor for search engines.
  • Professional practice: Industry standard for production websites.

Frequently Asked Questions (FAQs)

What does CSS minification do?

CSS minification removes unnecessary whitespace, comments, and sometimes optimizes code structure to reduce file size while maintaining functionality.

Is minified CSS safe to use?

Yes, minified CSS works exactly the same as the original CSS, just in a compressed format. The browser interprets it identically.

Does this tool upload my CSS to a server?

No, all processing happens entirely in your browser. Your CSS never leaves your computer, ensuring complete privacy and security.