CSS Minifier
Minify CSS by removing whitespace and comments — reduce file size.
How to Minify CSS
Paste your CSS stylesheet into the input area and click "Minify CSS". The tool strips comments, removes unnecessary whitespace and line breaks, eliminates redundant semicolons, and produces compact output that renders identically in browsers.
Why Minify CSS?
CSS files are render-blocking resources — browsers must download and parse them before displaying a page. Minification reduces CSS file size by 15-40%, which directly improves page load times and Core Web Vitals scores. It's a standard best practice for production websites.
Is This Tool Free?
Yes, 100% free. Your CSS is processed entirely in your browser and never uploaded to any server.