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CSS Beautifier / Formatter
Indent and clean up messy CSS.
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About CSS Beautifier / Formatter
Reformat minified or sloppy CSS into readable, indented rules.
📐 Methodology & Reference Accuracy:
Calculations, formulas, and conversions execute locally in your web browser. Output models are benchmarked against official reference standards and updated for 2026.
🔒 This tool runs entirely in your browser. Nothing is uploaded or stored.
Background reading: Css Beautifier on Wikipedia. More: all developer tools.
Frequently Asked Questions about CSS Beautifier / Formatter
How do I use the CSS Beautifier / Formatter?
Open the CSS Beautifier / Formatter and use the controls in the workspace below: indent and clean up messy css. Results appear instantly in your browser, with nothing to install, sign up for, or pay for.
Is the CSS Beautifier / Formatter free?
Yes. The CSS Beautifier / Formatter is completely free, like every tool in the PrimeFreeTools library. There are no accounts, subscriptions, or usage limits.
Does the CSS Beautifier / Formatter store or share my data?
No. The CSS Beautifier / Formatter runs with JavaScript in your browser, so what you enter never leaves your device and nothing is stored on a server.
What can I use the CSS Beautifier / Formatter for?
Reformat minified or sloppy CSS into readable, indented rules. You will find it grouped under Developer Tools together with 78 other free tools on the PrimeFreeTools homepage.
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Indent and clean up messy CSS.
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