ConvertBox Logo
ConvertBox

CSS Minifier

Minify CSS by removing unnecessary spaces, comments, and line breaks to reduce stylesheet size and improve page loading performance in the browser.

How to Use

  1. Paste your CSS code in the input area
  2. Select compression options
  3. Click Minify CSS to compress
  4. Copy the minified result

All processing is done in your browser, and files are never sent to a server.

Frequently Asked Questions

No, the visual output remains identical. Only unnecessary characters like whitespace and comments are removed.
No, this tool minifies standard CSS only. Preprocessor code should be compiled to CSS first.
Yes, it can shorten color codes and zero values for additional size reduction.