Online CSS Minifier

Reduce your CSS file size instantly. Choose between safe and aggressive minification modes for optimal performance.

Why Use an Online CSS Minifier?

Minifying CSS is a standard practice in modern web development. It involves removing unnecessary characters from your code—such as whitespace, newlines, and comments—without affecting how the browser interprets the styles.

Benefits of Minification

  • Reduced File Size: Can reduce CSS size by up to 40%.
  • Faster Loading Times: Smaller files render quicker.
  • Bandwidth Savings: Lower data usage for users and servers.

Compression Levels

Our tool offers two modes:
High Compression: Removes all whitespace and unnecessary formatting. Best for production.
Safe Mode: Keeps some spacing for slightly better readability while still compressing.

Tips for Developers

Always keep a source version of your CSS (e.g., style.css) and only use the minified version (style.min.css) for production deployment. Tools like this are great for quick optimizations or projects without a complex build pipeline.