Converter · SOTA Tokenizer · comment-safe

CSS Formatter & Minifier

Format, prettify, or minify CSS with configurable indent. Preserves comments, supports CSS Level 4 (Container Queries, :has, Cascade Layers), and handles nested selectors (CSS Nesting Level 1).

Prettify Minify Indent: Keep comments Sort properties alphabetically

Input CSS

Output

How to Use CSS Formatter in 3 Steps

Configure. Paste CSS into the input. The tool auto-detects whether to prettify minified CSS or minify pretty CSS.
Process. Choose indent (2 or 4 spaces, or tabs), comment preservation (keep or strip), and property sorting (none / alphabetical).
Export. Copy the formatted output. Valid CSS structure is preserved, no selector or value is modified, only whitespace.

Why CSS Formatter on Pixlane

CSS formatting is needed for reviewing minified stylesheets, cleaning up IDE-exported code, preparing production bundles, and normalizing formatting across a team. Pixlane's tokenizer handles CSS Level 4 features, Container Queries, :has(), Cascade Layers, native Nesting, that many older formatters miss.

CSS Level 4 Aware: Handles Container Queries (@container), :has(), Cascade Layers (@layer), Nesting (&), subgrid, anchor positioning, the modern CSS spec.
Bidirectional: Same tool for prettify and minify. One click switches between production-ready compact and human-readable expanded output.
Comment-Safe Tokenizer: Character-by-character tokenizer preserves comments, strings, and URLs exactly. No regex edge cases.
Property Sorting: Optional alphabetical property sort produces consistent diffs when reviewing style changes.

Frequently Asked Questions

Does it handle CSS Nesting?

Yes. CSS Nesting Level 1 (shipped in all browsers 2023-2024) is tokenized correctly. Nested rules remain nested with proper indentation.

Does minification change my CSS behavior?

No. Minification removes whitespace and comments only. Selectors, declarations, and values are preserved byte-for-byte. The output is semantically identical.

Is my CSS sent to a server?

No. Formatting happens entirely in your browser. Your stylesheets, which may contain proprietary design systems, never leave your device.

Is this tool free?

Yes. CSS Formatter on Pixlane currently requires no signup for core use; tool-specific limits may apply.

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