CSS Minifier
Minify CSS to reduce file size.
About CSS Minifier
Minifying CSS reduces file size so your styles load faster. Our CSS minifier strips comments and unnecessary spaces and line breaks from your stylesheet and outputs a single, compact block of CSS. Paste your CSS, click minify, and copy the result into your project or build process. The output is valid CSS that behaves the same as the original. Handy for production sites, themes, or any asset pipeline. Everything runs in your browser; we don’t store or see your code. No account required and no usage limits. A simple way to make your CSS smaller and faster.
How to use CSS Minifier
Paste your CSS and click Minify. Comments and unnecessary whitespace are removed to reduce file size.
Related guides for CSS Minifier
Pro tips for CSS Minifier
- Paste your CSS and click Minify.
- All processing runs in your browser—your input is not uploaded to our servers.
- Bookmark this page if you use this tool often.
FAQs about CSS Minifier
What gets removed when minifying CSS?
Comments and unnecessary spaces and line breaks. The CSS rules and behavior stay the same.
Can I use the output in production?
Yes. Minified CSS is valid and commonly used in production to reduce file size.
Does it change variable or selector names?
This tool only removes whitespace and comments. It does not rename variables or shorten selectors.
Is my CSS sent to a server?
No. Minification runs entirely in your browser.