Minify CSS
Compress CSS for better performance
.css
Result
Output
About this tool
Compress CSS files by removing whitespace, comments, and unnecessary formatting while preserving functionality. Reduce stylesheet size, improve page rendering performance, lower bandwidth usage, and optimize websites for faster loading and better SEO.Available via the API.
Limits
Limited to 10 requests / day when used without registration.Get more when you sign up (it's free) or buy a plan.Plan Free - 100 requests / month
Plan Plus - 1 000 requests / month
Plan Pro - 10 000 requests / month
Plan Max - 30 000 requests / monthLearn more about plans and pricing.
Tips
- Keep a copy of your original CSS files before minification for easier updates and debugging.
- Test your minified CSS across different browsers to ensure consistent styling and functionality.
- Clean up unused selectors and redundant rules before minification to reduce file size and keep stylesheets efficient.
- Minify your CSS as the very last step in your build pipeline before deploying to production.
Frequently Asked Questions
What does minifying CSS do?
Minification removes unnecessary whitespace, line breaks, and comments from CSS code without changing how the styles are applied.Will minifying affect how my website looks?
No, minification only removes formatting characters that are not needed for the browser to interpret the styles. The visual result remains the same.Is my CSS sent to a server?
Yes, the CSS is sent to our servers to be minified, and the result is returned to your browser. It is not stored after processing.Should I minify CSS during development?
It is best to minify CSS only as part of your production build process, keeping the readable, unminified version for development and debugging.Is the tool free to use?
Yes, you can minify a limited amount of CSS without an account. Creating an account or upgrading your plan increases your usage limits.