CSS Formatter & Minifier

Beautify or minify CSS stylesheets.

Free · Runs in your browser · Last updated 2026-05-03

Input CSS

Output

About this tool

Reformat dense CSS with one rule per line and consistent indentation, or minify by removing whitespace and comments.

Privacy

All processing for CSS Formatter happens locally inside your browser using JavaScript. Your input is never uploaded to a server, logged, or shared with third parties.

Frequently asked questions

Is the CSS Formatter free to use?

Yes. CSS Formatter is completely free for both personal and commercial projects. There are no usage limits, no sign-up, and no premium tier.

Is my data safe when I use CSS Formatter?

All processing happens locally in your browser using JavaScript. Your input is never uploaded to our servers, logged, or shared with any third party.

Does CSS Formatter work offline?

Once the page has loaded, the tool runs entirely client-side. You can disconnect from the internet and it will keep working in the same browser tab.

Which browsers are supported?

CSS Formatter works in all modern browsers, including the latest versions of Chrome, Firefox, Safari, Edge, Brave, and Opera, on desktop and mobile.

Do I need to install anything?

No. CSS Formatter runs in any modern web browser with no installation, browser extension, or account required.

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