CSS Minifier

Compress CSS code by removing whitespace, comments, and unnecessary characters.

Text Utilities

Drop a CSS file here

Input CSS Minified Output

How to use CSS Minifier

The CSS Minifier tool removes whitespace, comments, and unnecessary characters from your CSS code to reduce file size and improve website load times. Paste your CSS code in the input pane and click Minify.

What gets removed:

Unnecessary spaces, tabs, and line breaks
Comments (/* ... */)
Empty selectors and rules
Trailing semicolons in declarations
Extra colons and commas

Examples

Before:

/* Main stylesheet */
body {
  margin: 0;
  padding: 10px;
  background-color: #fff;
}

After:

body{margin:0;padding:10px;background-color:#fff}

FAQs

Does minification break my CSS?

No. Minification only removes unnecessary formatting and comments, preserving all CSS functionality.

How much file size reduction can I expect?

Typical CSS files see 30-50% size reduction after minification, depending on comment usage and formatting.

Can I revert minified CSS?

You can use a CSS beautifier/formatter to expand minified code back to readable format.

Is my code safe?

Yes. All processing happens in your browser—your code is never sent to any server.