CSS Minifier
Minify CSS code and reduce its size by removing whitespace and comments instantly
The result will appear here…
About CSS Minifier
Fastols' CSS Minifier reduces the size of CSS code by removing extra whitespace, comments, and blank lines, making the file lighter and faster to load on your site.
Useful before deploying CSS files to production to improve page load speed. Minification happens entirely inside your browser — no data is uploaded to any server.
How to use CSS Minifier
- 1Paste your CSS code into the box
- 2The minified version appears automatically on a single line
- 3Click "Copy Result" to copy the minified code
Frequently Asked Questions
Does minifying affect how the code works?
No, the tool only removes extra whitespace and comments — the CSS still functions exactly the same.
Is the tool completely free?
Yes, 100% free with no usage limit.
Is my data stored on any server?
No, minification happens entirely inside your browser — nothing is sent to any server.