Does beautifying change what the CSS does?

No. Whitespace between CSS tokens is insignificant, so expanding a stylesheet cannot alter how it renders. The output is byte-for-byte equivalent as far as the browser is concerned.

Why were the comments removed?

The formatter normalises the stylesheet before laying it out, and that pass drops comments. For minified input this costs nothing, since there are none left. For hand-written CSS you'll lose your notes, so keep the original.

Will it handle SCSS or Less?

Partly. Nested rules and blocks will be indented sensibly because the brace structure is the same. Preprocessor-specific syntax — mixins, variables with @, control directives — will pass through as text rather than being formatted idiomatically. For real SCSS work, use Prettier or your editor's formatter.

CSS Beautifier

Take a minified stylesheet and get readable CSS back — one declaration per line, one indentation level per nested block, and media queries indented inside their own braces. Useful when you're reading somebody else's compiled stylesheet, debugging a rule that only exists in production, or picking apart CSS that a page builder generated as a single line.

Your text

Indent

Result

Nothing is uploaded — this tool runs inside your browser, so your files never leave your device.

Help us improve

Why use this tool

One declaration per line, indented by nesting level
Nested blocks like @media and @supports are indented properly
Two-space, four-space or tab indentation
Runs in your browser — paste a whole production stylesheet if you like

How it works

1Paste the minified CSS.
2Choose your indentation.
3Copy the expanded stylesheet out.

CSS Beautifier — frequently asked questions

You get the rules back exactly, but not the comments or the original line breaks — minification threw those away and nothing can recover them. If the site ships a source map, that will give you the true original; this gives you readable CSS from the minified file alone.

More developer tools

Text → Base64 Base64 → Text URL Encoder URL Decoder JSON Formatter JSON Minifier

Looking for something else? Browse all developer tools

Explore the other tools

Same deal everywhere on the site — free, no sign-up, and no watermark on anything you download.

QR Code Tools Barcode Tools PDF Tools Image Tools SEO Tools Text Tools Calculators Unit Converters Color Tools File Tools Business Tools AI Tools Utilities

Or see every tool on one page.