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TOOL · 93 · Data & Utility

CSS Beautifier / Unminifier

Turn minified or messy CSS into cleanly indented, one-declaration-per-line source.

In short
CSS Beautifier re-indents minified or messy CSS with one declaration per line and proper nesting for media queries and selector blocks. Runs instantly, entirely in your browser.

Processed 100% in your browser — your files never leave your device.

How it works

  1. Step · 01

    Paste minified or messy CSS on the left.

  2. Step · 02

    The beautifier indents declarations, one per line, with proper nesting for media queries and selectors.

  3. Step · 03

    Copy the tidy output or download it as .css.

Frequently asked questions

Does it understand SCSS or Less?
It handles the CSS subset (nested rules will format visually but syntax-specific features are not validated). For SCSS, use the source-side formatter in your editor.
Is my code sent anywhere?
No. Everything runs in the tab — the site never sees your stylesheet.
Are my files uploaded to a server?
No. Files are processed directly in your browser using JavaScript and WebAssembly. Nothing is uploaded to our servers, so your documents never leave your device.
Does it work on mobile?
Yes. The tools run in any modern browser on desktop, tablet, or mobile (Chrome, Edge, Safari, Firefox). Very large files may be slower on low-end phones.

Read the guide

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