CSS Minifier

Paste your CSS, then minify. Copy the compact version into your build or a production stylesheet.

• This is a simple comment and whitespace minifier — always test pages that rely on unusual spacing inside strings.
• For production, pair this with Gzip/Brotli compression on your server.

Minify this snippet:

/* note */
body {
  color: red;
  margin: 0;
}

The output drops the comment and the spaces:

body{color:red;margin:0;}

• Minified CSS — the same rules with comments and extra spaces removed.
• Saved bytes — the difference between the original and minified sizes.
• Savings percent — the share of the file that was whitespace or comments.

• MDN: CSS
• W3C CSS Syntax Module