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CSS Minifier
Minify CSS by removing comments, whitespace, and redundant characters to reduce file size for faster page loads. Also beautify minified CSS back into readable, properly formatted code. Instant results, all in your browser.
Updated June 2026
- 1Paste your CSS
- 2Minify it
- 3Copy the minified CSS
How to use CSS Minifier
- 1
Paste your CSS
Drop your stylesheet into the input box.
- 2
Minify it
Click 'Minify' to strip whitespace, comments, and redundant characters.
- 3
Copy the minified CSS
Grab the compact output ready for production.
Frequently asked questions
Everything you need to know about css minifier.
Typically 20–40%. Removing whitespace, newlines, and comments from a large CSS file can save tens of kilobytes, meaningfully improving page load performance.
Yes. Minification only removes characters that have no effect on CSS rendering — whitespace, newlines, and comments. The visual output is identical.
Yes. Paste any minified CSS and use the beautify option to produce a properly formatted, human-readable version.
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