CSS Analyzer - Size & Rule Statistics

Analyze CSS for size, rules count, selectors, and properties. Find optimization opportunities. Browser-based, private CSS analysis.

CSS Input

Total file size, rule count, selector count, unique properties, media queries, and estimated minification savings.

It identifies duplicate selectors, unused vendor prefixes, and overly specific selectors that could be simplified.

Yes. All analysis happens in your browser. No CSS is sent to any server.

The tool estimates how much space you'd save by minifying, based on whitespace and comment removal.

It identifies syntax issues during parsing, but this is an analyzer, not a validator. Use a CSS validator for error checking.

No. Finding unused CSS requires HTML context. This tool analyzes CSS structure and size only.

The tool calculates average and max specificity to help identify overly complex selectors.

Concatenate CSS files or analyze them separately. Each analysis is independent.

Yes. The analyzer shows unique colors and can help identify redundant color definitions.

Imports are counted but not resolved. The imported files aren't fetched or analyzed.