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CSS Minifier

100% Free Instant Results No Sign-up High Quality

How to Use the CSS Minifier:

  1. 1 Paste your CSS code into the input area.
  2. 2 Click Minify CSS.
  3. 3 Copy the optimized output for production use.

Frequently Asked Questions

No, minification only removes unnecessary whitespace, comments, and formatting. It doesn't change the logic or functionality of your CSS. The browser interprets minified CSS identically to the original. Always test after minification, but properly formatted CSS should minify safely.

Typical reduction is 15-30% depending on formatting and comments in your original CSS. Well-commented, heavily formatted CSS with lots of whitespace sees larger savings. When combined with Gzip compression on the server, total bandwidth savings can exceed 70-80%.

No, keep CSS readable during development for easier debugging. Minify only for production deployment. Modern build tools (Webpack, Vite, Parcel) can automate this—serving readable CSS in dev and minified CSS in production. Keep source files formatted and minify as part of your build process.
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