Everything runs in your browser. Your data is never sent to our servers.
About CSS Minifier
CSS Minifier removes comments, spaces and the last semicolons from your CSS so the file is smaller and loads faster.
Tips for best results
- Strings and values like calc() are kept safe.
- Keep the readable version as your source file.
- Minifying usually saves 20 to 40 percent.
How to use CSS Minifier
- 1
Paste your CSS
Add your stylesheet.
- 2
Read the result
The minified CSS and the size saved appear below.
- 3
Copy it
Press Copy or download as styles.min.css.
Frequently asked questions
Will my styles still work?
Yes. Only whitespace and comments are removed.
Does it merge or rename rules?
No. It is a safe minifier that does not restructure your CSS.
Is my code uploaded?
No. This tool runs inside your browser, so your data is processed on your own phone or computer and is not sent to our servers.