CSS Minifier
Minify CSS by removing whitespace, comments, and unnecessary characters to reduce file size.
CSS File Size Optimization
CSS files are render-blocking resources — the browser must download and parse all CSS before it can display the page. Minimizing CSS file size directly reduces page load time and improves Core Web Vitals metrics like First Contentful Paint.
Minification typically reduces CSS file size by 20-30%. Combined with gzip/brotli compression, the bandwidth savings are even larger.
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Frequently Asked Questions
What does CSS minification remove?
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CSS minification removes comments, extra whitespace, newlines, and unnecessary semicolons before closing braces. It also removes spaces around colons, semicolons, and braces.
Will minification break my CSS?
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No. The minifier preserves all selectors, properties, and values. Only whitespace and comments are removed — the styles are functionally identical.