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CSS Minifier
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Minify CSS without breaking your styles
This CSS minifier removes unnecessary whitespace, line breaks and comments to shrink the size of your stylesheet while keeping it valid and usable in production. It is useful for shipping faster front-end code, trimming blog theme CSS, reducing overhead in design systems, and keeping long stylesheets easier to transfer.
Why minify CSS?
- Faster page loads - smaller CSS files download and parse more quickly.
- Lower bandwidth - whitespace can add a surprising amount of extra bytes.
- Cleaner production builds - minified CSS is common in deployment pipelines and static-site setups.
HOW it works
The tool strips comments and unnecessary spaces without altering the actual CSS rules. It runs entirely in the browser, so nothing is sent to a server. If you need a quick preview after minification, try theHTML preview tool or the JSON formatterfor other data types.