How to use CSS Minifier Online
- Type or paste your CSS into CSS Minifier Online's input area.
- The result is computed live in your browser as you edit the input.
- When it looks right, Copy to save it.
About this tool
CSS Minifier Online is a static, client-side tool with no backend. CSS Minifier Online processes CSS in your browser, applying the transformation to the styles you paste without altering their meaning.
Nothing about your stylesheet is uploaded. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
How do I use CSS Minifier Online?
CSS Minifier Online lets you minify your input right in the browser, with the result shown instantly and nothing uploaded.
Does CSS Minifier Online cost anything?
No — CSS Minifier Online is completely free, with no sign-up and no hidden limits.
Does CSS Minifier Online upload my data?
No — CSS Minifier Online processes everything locally in your browser, so nothing you enter is uploaded or stored.
Does CSS Minifier Online support modern CSS syntax?
Yes. CSS Minifier Online handles current CSS in your browser and leaves your selectors and values untouched.
Does CSS Minifier Online work on mobile?
Yes — CSS Minifier Online is just a web page and runs on any modern browser, including phones and tablets.