Compress CSS by removing comments, redundant whitespace, and unnecessary characters — reducing file size for faster page loads.
How it works
- Paste your formatted CSS code into the editor.
- The minifier strips structural whitespace and comment blocks safely.
- Copy the compressed CSS output to use in your production environment.
Frequently asked questions
How much smaller will my CSS files get?
Depending on how heavily commented and indented your source file is, you can expect a 10–30% reduction in total file size.
Will this minification break my styling rules?
No. It only removes mathematically insignificant characters like spaces and line breaks. Valid CSS will remain perfectly valid.
Should I minify CSS by hand using this tool?
For heavy production apps, build tools (like Webpack or Vite) minify automatically. This tool is incredibly handy for quick one-off deployments.