$minify css
Strip /* comments */, collapse whitespace, drop unneeded semicolons, shrink 0px → 0 / #ffffff → #fff. Token-safe: strings and url() are preserved.
Frequently asked questions
What does Minify CSS do?
Compress CSS by stripping whitespace, comments and dupes. The whole thing runs in your browser tab, so it is ready the moment the page finishes loading.
Is Minify CSS free to use?
Yes. Minify CSS is completely free on ToolMunch — no trial, no premium tier holding back the main feature, and no daily or hourly cap on how many times you can use it.
Do I need to create an account or sign up?
No. There is no account, no email address, and no login. Open Minify CSS, do the job, and take the result — nothing is gated behind a signup form.
Is the code I paste in sent to a server?
No. Minify CSS runs entirely inside your browser tab, so the code you paste stays on your own device. Nothing is uploaded, which means there is no copy of it on a server to worry about.
Does Minify CSS work on Mac, Windows, and phones?
Yes. Minify CSS runs in any modern web browser on Windows, macOS, Linux, Chromebook, Android, and iOS. There is nothing to download or install.
Can I use it as many times as I want?
Yes. There is no queue, no per-hour quota, and no counter that runs out — run Minify CSS as often as the work needs.