CSS Minifier
Developer Tools
Minify CSS code
How to Use
- 1. Paste or type your CSS code in the input field
- 2. Click "Minify CSS" to remove unnecessary whitespace and comments
- 3. Click "Format CSS" to pretty-print your CSS
- 4. Use the copy button to copy the result or download as a CSS file
Example / Use Case
Optimize Stylesheet for Production
A web developer optimizes their website stylesheet for production deployment. They minify the CSS to reduce file size and improve load times.
Input
CSS: body {
margin: 0;
padding: 0;
}Output
Minified: body{margin:0;padding:0}
Savings: ~50%How It Works
CSS minification removes unnecessary characters from stylesheets to reduce file size. This includes whitespace, newlines, comments, and optional semicolons. The browser interprets minified CSS identically to unminified versions because it only cares about the CSS rules, not formatting.
By reducing CSS file size, websites load faster, use less bandwidth, and score better on performance metrics. This is especially important for mobile users and pages with large stylesheets. Modern build tools often include minification, but online minifiers are useful for quick optimizations. For HTML and JavaScript minification, use the respective tools.
How to Use
- 1Paste or type your CSS code into the input area
- 2Click the "Minify" button
- 3View the compressed CSS output
- 4Copy the minified code for production use
Frequently Asked Questions
Yes, the minifier supports standard CSS3 and most CSS frameworks.