CSS Minifier

Compress CSS code by removing whitespace, comments, and optimizing for production

CSS Processor

Optimizer

Input CSS

Size: 0 bytes

Minified Output

Minified CSS will appear here...

CSS Minification Tips

What CSS Minification Does

• Removes comments: Strips // and /* */ comments
• Removes whitespace: Unnecessary spaces, tabs, newlines
• Shortens colors: #ffffff → #fff, rgb(255,255,255) → #fff
• Optimizes zeros: 0px → 0, 0.5s → .5s
• Removes semicolons: Last semicolon in blocks

When to Minify CSS

• Production deployment: Always minify for live sites
• Performance optimization: Smaller files load faster
• Bandwidth saving: Reduce data transfer costs
• Development: Keep original CSS for readability
• Testing: Compare before/after file sizes

Example Transformation

    /* Before */

    .container {

      margin: 20px;

      padding: 10px;  /* This is a comment */

      background-color: #ffffff;

    }

    

    /* After */

    .container{margin:20px;padding:10px;background:#fff}

Privacy & Performance

All CSS processing happens locally in your browser. No data is sent to any server, making this tool safe for proprietary CSS code. Processing is instant and works offline.