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.

CSS inBeautified

body {
  margin:0;
  font-family:system-ui;
}
a {
  color:#0af;
  text-decoration:none;
}
a:hover {
  text-decoration:underline;
}
.card {
  padding:1rem;
  border:1px solid #eee;
}

How it works

Step · 01
Paste minified or messy CSS on the left.
Step · 02
The beautifier indents declarations, one per line, with proper nesting for media queries and selectors.
Step · 03
Copy the tidy output or download it as .css.

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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.