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CSS Minifier & Beautifier

Minify CSS to reduce file size or beautify it for readability. Includes syntax validation, size comparison, and instant copy.

Minify CSSBeautify/format CSSSyntax validationSize comparisonCopy output

Input CSS

Beautified Output

Output will appear here...

How to Use the CSS Minifier & Beautifier

  1. 1Paste your CSS code into the input textarea on the left
  2. 2Choose Beautify mode to format CSS with proper indentation, or Minify mode to compress it
  3. 3The tool validates your CSS and displays any syntax errors
  4. 4View the result in the output panel on the right
  5. 5Check the stats bar for original size, output size, and savings percentage
  6. 6Click "Copy" to copy the result to your clipboard

Frequently Asked Questions

What does CSS minification do?

CSS minification removes all unnecessary characters — whitespace, line breaks, comments, and trailing semicolons — without changing functionality. This reduces file size, leading to faster page load times and lower bandwidth usage in production.

What does the CSS beautifier do?

The beautifier reformats compressed or messy CSS into a clean, readable format with consistent indentation, one property per line, and proper spacing after colons and around braces. This makes CSS much easier to read and maintain.

Is my CSS data secure when using this tool?

Yes. All processing happens entirely in your browser using client-side JavaScript. Your CSS code is never sent to any server, ensuring complete privacy for proprietary stylesheets.

How much file size can I save by minifying CSS?

Savings vary depending on the original formatting, but typical CSS files see a 20-40% reduction in size after minification. Files with lots of comments and whitespace may see even greater savings.

Does this tool support CSS preprocessor syntax like SCSS or LESS?

This tool is designed for standard CSS. While basic SCSS/LESS syntax may process correctly, advanced preprocessor features like variables, mixins, and nesting may not be handled properly. Compile to CSS first for best results.

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