Debug Production CSS

View minified CSS from production sites in a readable format to find and reverse-engineer styling.

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Sort properties alphabetically

Minified / messy CSS

Beautified CSS

Output will appear here…

CSS Debug tips

🐛

Open DevTools, find a stylesheet, copy the minified content, paste here. Now you can search for class names and understand the cascade.

💡

For understanding popular sites' CSS techniques, run their minified styles through the beautifier to study their patterns.

🎯

Sort properties alphabetically to spot duplicate declarations or order-of-cascade bugs.

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Enter your data into the tool above. Everything stays local to your browser.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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Enforce Team CSS Style

Run team-submitted CSS through a consistent beauti

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Vendor-prefixed CSS (autoprefixer output) often ha

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Study CSS from famous design systems by formatting

Format CSS for Bug Reports

When filing CSS bugs, formatted CSS is much easier