TULKIT

CSS Minifier - Compress CSS Code Online

Optimize your CSS files by removing unnecessary characters, whitespace, and comments with our free online CSS Minifier. Reduce file sizes and improve your website's loading performance instantly.

Why Minify Your CSS?

  • Faster Rendering: Smaller CSS files parse and apply faster
  • Reduced Bandwidth: Less data to transfer means lower hosting costs
  • Better Performance: Critical rendering path optimization improves FCP
  • Advanced Compression: Optimizes colors, shorthand properties, and more

Common Use Cases

🌐 Website Optimization

Compress stylesheets before deployment to production servers.

📧 Inline Email CSS

Minify CSS for HTML emails where every byte counts.

📱 Mobile Apps

Reduce CSS size in hybrid mobile applications.

🔧 Build Pipelines

Quick minification when you don't have a build tool configured.

How to Use This Tool

  1. Paste Your CSS: Enter your stylesheet code in the input textarea.
  2. Click "Minify CSS": Our tool compresses your CSS using advanced algorithms.
  3. Use the Result: Copy or download the minified CSS for your project.

💡 Tip: Keep a copy of your original CSS file for development. Use minified versions only in production.

CSS Minifier Tool

CSS Minification Process

Our CSS minifier performs several optimizations:

  • Whitespace Removal: Strips all unnecessary spaces, tabs, and line breaks
  • Comment Stripping: Removes all CSS comments (except important ones)
  • Color Optimization: Converts #ffffff to #fff, rgb(255,0,0) to red
  • Shorthand Properties: Combines margin/padding values where possible
  • Zero Unit Removal: Converts "0px" to "0"
  • Duplicate Removal: Eliminates redundant property declarations

Expected Compression

CSS minification typically reduces file size by 20-40%, depending on the original formatting and content. Combined with gzip compression, total savings can exceed 80%.

Related Tools