CSS Minifier – Compress and Optimize CSS Code
Paste your CSS below and click Minify to remove comments, whitespaces, and optimize your styles.
How to Use CSS Minifier?
- Paste your CSS code into the input editor.
- Click the Minify button.
- View compressed CSS in the output editor.
- Copy or download your optimized CSS.
Why Use Our CSS Minifier?
Our CSS Minifier compresses your stylesheets by removing unnecessary characters, comments, and whitespace. Smaller CSS files load faster, improve site performance, and enhance user experience.
Faster Website Speed
Minified CSS loads faster, improving Core Web Vitals and SEO ranking.
Secure & Private
Your CSS is processed locally when possible. Nothing is stored or tracked.
Minifying CSS improves Core Web Vitals such as First Contentful Paint (FCP) and Largest Contentful Paint (LCP), helping your website achieve better performance scores and higher SEO rankings.
More performance tools: JavaScript Minifier · HTML Minifier · CSS Beautifier
Example: Before & After CSS Minification
Below is a simple example of how CSS is compressed:
Before:
body {
background: #ffffff;
margin: 0;
padding: 20px;
}
button {
color: #000000;
padding: 10px 20px;
}
After Minification:
body{background:#fff;margin:0;padding:20px}button{color:#000;padding:10px 20px}
Paste your CSS above to compress it instantly.
What Does the CSS Minifier Optimize?
- Removes comments and unused CSS remarks
- Collapses unnecessary whitespace and line breaks
- Shortens hex color values (#ffffff → #fff)
- Removes redundant semicolons and spaces
- Merges duplicate declarations when possible
- Optimizes CSS for production without breaking layouts
These optimizations significantly reduce CSS size and speed up website loading time.