CONVERTERS
CSS Formatter & Minifier
Beautify CSS for editing or compact it for deployment.
CSS FORMATTING
Format CSS locally
CSS formatter and minifier guide
Beautify CSS for editing or compact it for deployment without uploading your stylesheet.
The formatter is a local whitespace tool. It does not replace a CSS parser, linter, browser test, or build pipeline.
Readable CSS for review
Indentation separates selectors, declarations, nested blocks, comments, and media queries so changes are easier to inspect. Keep the formatted result as a review aid, not as proof that the stylesheet is valid.
Formatting versus validation
Whitespace changes do not prove that CSS is valid or that it behaves consistently across browsers. Custom properties, strings, data URLs, vendor syntax, and unusual constructs deserve extra care.
Before shipping minified CSS
- Keep an unminified source copy and source maps where appropriate.
- Test layout, responsive states, focus styles, animations, and generated content.
- Check that comments, quoted values, URLs, and custom properties remain intact.
Tip: Use your project’s CSS parser and bundler for production builds; this page is best for quick inspection and small snippets.
Frequently asked questions
Does this validate CSS?
No. It formats or minifies CSS text but does not replace a standards validator or browser testing.
Does formatting change CSS behaviour?
It should preserve ordinary CSS meaning, but review complex stylesheets and keep the original source.
Does this process my stylesheet on a server?
No. The text is formatted locally in your browser.
Privacy note: CSS formatting happens in your browser. Your stylesheet is not stored or uploaded.