CSS Beautifier

The CSS Formatter is a precision code beautifier that takes minified, compressed, or inconsistently written CSS and transforms it into clean, properly indented, and consistently organized code. It's a daily-use tool for front-end developers, CSS architects, and UI engineers who need to maintain readable stylesheets across teams and projects.

The formatter applies standard CSS coding conventions: one property per line, consistent indentation, logical spacing around colons and semicolons, and organized selector formatting. It handles modern CSS features including custom properties (CSS variables), @media queries, @supports rules, nested selectors (CSS Nesting spec), and complex selector chains, producing output that matches professional coding standards.

Beyond beautification, the tool can minify CSS for production (removing whitespace and comments to reduce file size) and provides a quick side-by-side comparison of before/after with byte savings. All processing runs in your browser — your stylesheets, which may contain proprietary design system tokens and class naming conventions, never leave your machine.