- Comments (/* ... */)
- Whitespace & newlines
- Spaces around ; : { }
How to use the CSS Minifier
Paste your CSS code into the box and click Minify. All whitespace, comments and unnecessary characters are removed. Click Copy to grab the minified CSS or Download to save it as a file.
Frequently Asked Questions
Minifying CSS reduces the file size by removing whitespace, comments and unnecessary characters. Smaller files load faster, improving page speed and your Google PageSpeed Insights score, which affects SEO rankings.
No. Minification only removes characters that are not needed for the browser to interpret the CSS. It does not change any values, selectors or properties. Your styles will look identical after minification.
Minification removes unnecessary characters from the source code. Compression (like gzip) reduces the file size further when transferring over the network. Most web servers apply gzip automatically. For best results, do both.
Yes, always keep the original readable CSS for development. Use the minified version only for production. A common convention is to save the minified version as styles.min.css alongside the original styles.css.