# CSS Formatter

Canonical URL: https://offlineutils.com/css-formatter
Category: Developer
Published: 2026-07-28
Publisher: offlineutils.com
Runs entirely in the browser; nothing entered into the tool is uploaded.

> A CSS Formatter expands minified or inconsistent stylesheets into readable, consistently indented CSS — and also handles SCSS and Less — using Prettier's engine entirely in your browser.

Paste a stylesheet that arrived as one long line and get it back with one declaration per line, normalised spacing, and consistent indentation. The same engine handles SCSS and Less, including nesting, mixins, and variables, so you can clean up preprocessor source as easily as plain CSS. Prettier is bundled with the page rather than fetched from a CDN, so nothing you paste is uploaded, and a syntax error reports the exact line and column rather than producing mangled output.

## Features

- CSS, SCSS, and Less in one tool
- Runs the real Prettier engine, self-hosted — no CDN
- Indent width or tabs, plus configurable wrap column
- Single or double quote normalisation
- Exact line and column on a parse error
- Copy or download the formatted stylesheet

## Use cases

- Reading a minified stylesheet pulled from a live site
- Cleaning up CSS copied out of a design tool or CMS
- Normalising a stylesheet before reviewing it in a diff
- Tidying SCSS or Less before committing

## How to use it

1. **Paste your CSS** — Paste CSS, SCSS, or Less into the input pane.
2. **Pick the language** — Choose CSS, SCSS, or Less and set indentation.
3. **Copy or download** — Copy the formatted stylesheet or download it.

## When to use it, and when to use something else

- **vs Your editor's formatter** — use CSS Formatter when the CSS isn't in a project yet, or you're on a machine you can't install on. Use Your editor's formatter when the file is already open in your editor.
- **vs DevTools' pretty-print** — use CSS Formatter when you want output you can copy, configure, and download. Use DevTools' pretty-print when you only need to read the CSS inside the browser inspector.

## Frequently asked questions

### Can it unminify CSS?

Yes — that's the main use. Paste a minified stylesheet and it comes back with one declaration per line and proper indentation. Note that formatting restores structure, not information: comments and original names that the minifier deleted are gone for good.

### Does it support SCSS and Less?

Yes. Pick the language in the toolbar and Prettier uses the matching parser, so nesting, mixins, variables, and preprocessor-specific syntax are all preserved.

### Is my CSS uploaded anywhere?

No. The formatter is bundled with this page and runs in your browser. Nothing you paste is transmitted, logged, or stored.

### Why does it reformat my line breaks?

Prettier reprints from a parsed tree rather than patching your text, so output is canonical for the options you pick. That's what makes the result consistent no matter how the input was written — set the wrap column and indentation to match your project's style.

## Related tools

- https://offlineutils.com/html-formatter
- https://offlineutils.com/javascript-formatter
- https://offlineutils.com/css-playground