ENCODING TOOL · CLIENT-SIDE
CSS Minifier
Minify CSS by removing comments, extra whitespace, and unnecessary characters. See before/after size and savings. Runs entirely in your browser.
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How CSS Minification Works
CSS minification removes unnecessary characters without changing styling. This tool strips comments, collapses whitespace, removes newlines, and eliminates semicolons before closing braces.
Faster loading
Smaller CSS files load faster, improving render times and user experience.
Bandwidth savings
Reduced file sizes save bandwidth, especially important for high-traffic sites.
Safe to use
Minification preserves all styling — only whitespace and comments are removed.
Frequently Asked Questions
What is CSS minification?
CSS minification removes unnecessary characters from CSS code — such as comments, extra whitespace, line breaks, and semicolons before closing braces — without changing its styling behavior. This reduces file size and improves page load speed.
Why should I minify CSS?
Minified CSS files are smaller and faster to download. This improves page load performance, reduces bandwidth usage, and helps achieve better Core Web Vitals scores for SEO.
Can I still read minified CSS?
Minified CSS is difficult to read but not impossible. Keep your original CSS for development and use the minified version in production. Many build tools like Webpack and Vite automate this process.