Why is property sorting disabled by default?

In CSS, declaration order matters when multiple rules share the same specificity (the cascade principle) or when vendor prefixes are used. Sorting is kept optional to avoid breaking intentional style overrides.

Does this tool support CSS variables and calc() expressions?

Yes. Modern CSS custom properties (--variable-name) and nested functions like calc(), min(), and max() are formatted cleanly.

Can I format minified CSS?

Yes. Single-line minified CSS is expanded into readable multi-line rules with proper selector and declaration indentation.

Is my CSS stylesheet uploaded anywhere?

No. Formatting is performed entirely inside your browser using client-side JavaScript. Zero server storage or telemetry.

Dev Tools

CSS Formatter

Beautify, format and clean CSS stylesheets with cascade safety.

100% Private & Client-Side Execution

100% client-side processing. Your proprietary stylesheets never leave your device.

About CSS Formatter

CSS Formatter is a precision stylesheet beautifier that organizes CSS rules, media queries, and declaration blocks. It restores consistent indentation and spacing while maintaining strict cascade safety. Property sorting is optional and disabled by default, ensuring your declaration order and CSS specificity rules are never unintentionally altered.

How to Use CSS Formatter

Paste your raw or minified CSS into the editor or click "Load sample".
Choose your preferred indentation size (2 spaces or 4 spaces).
Keep "Sort declarations alphabetically" unchecked to preserve CSS cascade order, or enable it if you prefer alphabetical rules.
Review the formatted CSS in the right panel with real-time rule and line counts.
Click "Copy CSS" or "Download .css" to save your clean stylesheet.

Common Real-World Use Cases

Frontend Developers: De-minify CSS files from production bundles to inspect styles and debug layouts.
UI Designers: Standardize CSS formatting across design system component stylesheets.
Web Developers: Clean up disorganized stylesheets and align properties consistently before code review.
Site Owners: Beautify custom CSS snippets added to WordPress, Shopify, or Webflow themes.

Technical Specifications & Limitations

Supports modern CSS3, CSS custom properties (variables), media queries, @container queries, and keyframe animations.

Frequently Asked Questions

Why is property sorting disabled by default?: In CSS, declaration order matters when multiple rules share the same specificity (the cascade principle) or when vendor prefixes are used. Sorting is kept optional to avoid breaking intentional style overrides.
Does this tool support CSS variables and calc() expressions?: Yes. Modern CSS custom properties (--variable-name) and nested functions like calc(), min(), and max() are formatted cleanly.
Can I format minified CSS?: Yes. Single-line minified CSS is expanded into readable multi-line rules with proper selector and declaration indentation.
Is my CSS stylesheet uploaded anywhere?: No. Formatting is performed entirely inside your browser using client-side JavaScript. Zero server storage or telemetry.