Is this CSS minifier free?

Yes, our CSS minifier is completely free to use with no limits and no signup required.

How much can I reduce my CSS file size?

Typical CSS files see 20-40% size reduction after minification. The actual savings depend on whitespace and comments in your original CSS.

Absolutely. All CSS processing happens entirely in your browser. Your code is never sent to any server.

Free Online CSS Minifier

Compress your CSS to reduce file size and improve page load times. Remove whitespace, comments, and unnecessary characters. 100% free.

Need to beautify CSS instead? Use CSS Beautifier →

CSS Input

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Minified CSS

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Time to process: Instant

Privacy: 100% Client-Side

Instant Processing

Minify or beautify your CSS in real-time as you paste or type.

Size Reduction

See exactly how many bytes you save with detailed statistics.

100% Private

All processing happens locally. Your code never leaves your browser.

Professional CSS Minifier

Optimize your stylesheets with the most reliable CSS Minifier online. Reduce file sizes by removing unnecessary whitespace, comments, and redundant characters without affecting how your CSS renders.

What is CSS Minification?

CSS minification is the process of removing unnecessary characters from your stylesheets without changing their functionality. This includes removing whitespace, comments, and redundant semicolons. Minified CSS files are smaller, which means faster page load times.

Benefits of CSS Minification

⚡ Faster Load Times

Smaller files download faster, improving user experience and Core Web Vitals.

💰 Reduced Bandwidth

Lower file sizes mean less data transfer costs for high-traffic sites.

📈 Better SEO

Page speed is a Google ranking factor. Optimized CSS improves search rankings.

Optimize Your Stylesheets Today

Join thousands of developers who use Toolk CSS Minifier to optimize their production stylesheets. Instant compression, detailed statistics, and zero data collection.