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CSS Minifier

Minify your CSS code to reduce file size and improve load times

Input CSS

Minified Output

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What is CSS Minifier?

Free online CSS minifier to minify your CSS code to reduce file size and improve website load times.

This tool removes unnecessary whitespace, comments, and redundant formatting from your CSS while preserving its functionality. Smaller CSS files mean faster page loads, better Core Web Vitals scores, and reduced bandwidth usage. Paste your CSS and get an optimized version instantly, with a clear report of how much space you saved. No signup required.

How to Use CSS Minifier

1Paste your CSS code into the input area
2Click the 'Minify' button to compress your CSS
3Review the minified output and the size reduction stats
4Copy the minified CSS to use in your project

Frequently Asked Questions

CSS minification is the process of removing unnecessary characters from CSS code - including whitespace, line breaks, comments, and redundant semicolons - without changing how it works. This reduces file size, which makes web pages load faster.

No. Minification only removes characters that do not affect how browsers interpret your CSS. All your selectors, properties, values, and media queries remain intact. The minified CSS produces exactly the same visual result as the original.

Typical savings range from 10% to 30% depending on coding style. CSS with extensive comments, large indentation, and many line breaks will see the greatest reduction. The tool shows you the exact file size before and after minification.

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