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CSS Minifier

Compress CSS stylesheets by stripping comments and whitespace — optimize website performance.

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Minify CSS

Compress CSS stylesheets by stripping comments and extra whitespace — faster websites.

How to use

Step-by-step instructions

This free online CSS minifier removes whitespace, comments, and redundant characters from stylesheets. Smaller CSS means faster renders and better SEO-friendly performance scores — processing runs entirely in your browser with no server upload.

  1. Paste your CSS

    Add a full stylesheet or snippet from your theme, framework, or inline block.

  2. Set compression options

    Choose whether to strip comments and how aggressively to compress whitespace.

  3. Run Minify CSS

    The minifier processes your CSS locally in the browser — fast, free, and private.

  4. Check size reduction

    View original vs minified byte counts to estimate bandwidth and load-time savings.

  5. Deploy minified CSS

    Copy the output into your production bundle, CDN, or critical CSS inline block.

FAQ

Frequently asked questions

Common questions about CSS Minifier — answered for quick reference and search engines.

Is this CSS minifier free?

Yes. Minify unlimited CSS online at no cost and without creating an account.

Will minified CSS still work?

Yes. Minification only removes unnecessary characters. Selectors, properties, and values stay intact.

Is my CSS sent to a server?

No. This is a browser-based tool. Your stylesheets are never uploaded, keeping client work private.

Does CSS minification help SEO?

Faster stylesheets improve page speed and Core Web Vitals, which support stronger SEO performance.

Can I minify SCSS or LESS here?

Compile SCSS or LESS to plain CSS first, then paste the compiled CSS into this minifier.

About CSS Minifier

This free online CSS minifier removes whitespace, comments, and redundant characters from stylesheets. Smaller CSS means faster renders and better SEO-friendly performance scores — processing runs entirely in your browser with no server upload.

This free tool runs entirely in your browser. No signup, no data stored on our servers — your numbers and messages stay private on your device. Browse all free WhatsApp tools.

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