CSS Beautifier & Formatter
Beautify, minify, and validate CSS code instantly. Clean up messy stylesheets with custom indentation. All processing happens in your browser.
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Beautify CSS
Transform minified or messy CSS into clean, readable code with consistent indentation and proper spacing.
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Minify CSS
Strip whitespace, comments, and unnecessary characters to reduce CSS file size for faster page loads.
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Validate CSS
Check your CSS for syntax errors — unmatched braces, missing semicolons, and structural issues.
How It Works
Paste your CSS into the Input CSS panel and choose a mode — Beautify, Minify, or Validate. The output updates instantly as you type.
- Beautify — formats CSS with consistent indentation, line breaks, and spacing. Choose 2, 4, or 8 spaces.
- Minify — removes all whitespace, comments, and redundant characters to produce the smallest possible CSS.
- Validate — checks for structural CSS errors like unmatched braces.
All processing is done entirely in your browser — your code never leaves your device.
Common Use Cases
codeDevelopment Workflow
- • Clean up auto-generated CSS from preprocessors
- • Format minified third-party stylesheets for debugging
- • Validate CSS before committing to version control
- • Minify CSS for production deployments
brushDesign & Prototyping
- • Prettify exported CSS from design tools like Figma
- • Clean up inline styles copied from browser DevTools
- • Format CSS snippets from Stack Overflow
- • Quickly check CSS file size after minification