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CSS Compressor

Compress your CSS code to reduce file size

Original CSS

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Compressed CSS

Compression Settings

CSS Compressor - Compression of CSS code

CSS Compressor is a professional tool for compression and optimization of CSS code. Our compressor removes extra spaces, comments, unused rules and optimizes CSS for maximum performance. The tool supports multiple compression settings, allowing you to customize the optimization process to your specific needs. CSS compression significantly speeds up the loading of web pages and improves the user experience.

Why compress CSS code?

  • Faster Loading: Compressed CSS loads 2-5 times faster, which is critical for mobile devices
  • Traffic Savings: Reducing the file size saves user traffic and reduces hosting costs
  • SEO Benefits: Fast loading has a positive effect on positions in search engines
  • Better UX: Users don't wait for page loading and stay on the site longer
  • Scalability: Less server load with a large number of visitors
  • Web Development Standards: CSS compression is a mandatory practice in modern web development

CSS Compressor Functions

  • Comment Removal: Removes all CSS comments (/* comment */) to reduce size
  • Whitespace Compression: Removes extra spaces, tabs, and line breaks between rules
  • Semicolon Optimization: Removes unnecessary semicolons before closing braces
  • Empty Rule Removal: Removes CSS rules without properties and unused selectors
  • Color Minification: Shortens hex colors (#ffffff → #fff) and converts rgb() to hex
  • Size Optimization: Shortens size values (0px → 0, 1.0em → 1em)
  • Margin/Padding Compression: Optimizes margin and padding (10px 10px 10px 10px → 10px)
  • Duplicate Removal: Finds and removes duplicate properties and rules

Compressed CSS Applications

  • Websites: faster page loading and improved performance
  • Mobile applications: optimization for limited traffic and slow connections
  • Email newsletters: CSS compression for correct display in email clients
  • CDN and caching: reducing load on content delivery servers
  • PWA applications: optimization for offline mode and fast startup
  • WordPress themes: style compression to improve Core Web Vitals
  • E-commerce: faster loading of product and cart pages
  • Landing pages: maximum speed for visitor conversion

Our Compressor Benefits

  • Flexible settings: choose the compression options you need for your project
  • Security: CSS is processed locally, the code is not transferred to the server
  • Compatibility: preservation of functionality of CSS after compression
  • Statistics: detailed information about size before and after compression
  • Working with files: uploading and downloading CSS files
  • Fast processing: instant compression even for large files
  • Preview: ability to see the result before applying
  • Copying: quick export of compressed code to clipboard

CSS Compression Recommendations

  • Always create a backup of the original CSS before compression
  • Test compressed CSS on all target browsers and devices
  • Use Source Maps to debug compressed code in the browser
  • Combine compression with CSS file merging for maximum effect
  • Configure automatic compression during the project build process
  • Monitor Core Web Vitals after implementing compressed CSS
  • Use Gzip compression on the server in addition to minification
  • Regularly update CSS and re-compress when changes occur

Typical Compression Results

  • File size: 20-50% reduction depending on source code
  • Load time: 15-30% acceleration for mobile devices
  • Bandwidth: 20-40% traffic savings for users
  • SEO: improvement of PageSpeed Insights scores by 5-15 points
  • UX: 5-10% reduction in bounce rate due to fast loading
  • Server: 15-25% reduction in load with high traffic