Does it support SCSS or Less?

The basic formatter works on standard CSS. SCSS/Less with nested selectors, mixins, or variable interpolation ($var, @var) may not format perfectly since those are preprocessor extensions rather than plain CSS syntax, but any standard CSS embedded within a preprocessor file will still be formatted correctly.

Will it change my CSS selectors or values?

No. Only whitespace, line breaks, and indentation are changed. Every selector, property name, and value is preserved exactly as written — including vendor prefixes, custom properties, and unusual but valid values.

Why would I need to beautify CSS instead of just reading the minified version?

Minified CSS deliberately strips every line break and space to save bytes, which makes it functionally correct but nearly impossible to scan visually — one rule can span thousands of characters on a single line. Beautifying restores one property per line so you can actually locate and read a specific rule.

Does this tool validate my CSS for errors?

No — it reformats whitespace and structure but does not check for invalid property names, unsupported values, or browser compatibility issues. Use a dedicated CSS linter (like Stylelint) if you need syntax validation in addition to formatting.

Can I beautify CSS with nested @media queries inside it?

Yes. @media, @supports, @keyframes, and @font-face blocks are all handled with correct nested indentation, since the formatter tracks brace depth rather than only looking at the outermost rule level.

What happens to comments in my CSS during beautifying?

Comments are preserved in place — beautifying only adjusts whitespace and line breaks around your existing rules and comments, unlike the CSS Compressor, which strips comments entirely as part of minification.

Is there a size limit on how much CSS I can paste in?

No hard limit is enforced by the tool — it runs entirely in your browser tab, so the practical ceiling is just how much text your browser can comfortably hold in a textarea, which is well beyond any real stylesheet.

Is my CSS uploaded anywhere when I use this tool?

No. The entire formatting operation happens with local JavaScript string processing in your browser — nothing you paste is transmitted to a server, which matters if you are formatting proprietary or unreleased styles.

Can I format CSS custom properties (CSS variables)?

Yes. Declarations like --primary-color: #6366f1; and usages like color: var(--primary-color) are treated like any other property-value pair and formatted with the same consistent indentation as standard properties.

What is the difference between this tool and an IDE's built-in formatter?

A code editor's formatter (like Prettier in VS Code) requires the file to be open in that editor and typically reformats on save. This tool is useful when you have CSS in a browser DevTools panel, a chat message, an email, or any context outside your usual editor and just need a quick, no-install read.

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What is CSS Beautifier?

CSS Beautifier is a free online tool that formats and indents CSS stylesheets. Paste minified, compressed, or disorganised CSS and get clean, readable code with each rule on its own line, each property properly indented, and braces correctly placed.

Minified CSS is intentionally compact — single-line, no whitespace — which is ideal for production performance but makes debugging and editing nearly impossible. When you need to inspect a vendor stylesheet, investigate inherited styles, understand a CSS bundle from a build tool, or clean up code copied from a legacy project, a formatter is essential. Manually reformatting CSS by hand is error-prone and slow, especially once a file has more than a handful of rules.

This tool handles the full range of CSS syntax: individual rules, multi-selector declarations, nested media queries (@media), keyframe animations (@keyframes), custom property declarations (--variables), and at-rules like @import and @font-face. The output uses consistent 2-space indentation and a standard brace style that is compatible with all CSS linters and editors.

Readable formatting also makes specificity conflicts easier to spot. CSS resolves competing declarations using a specificity hierarchy — inline styles beat IDs, IDs beat classes, and classes beat element selectors, with later rules of equal specificity winning ties — and untangling why a particular color or margin isn't applying almost always means scanning several competing rule blocks side by side. That is far easier to do when each selector and property sits on its own clearly indented line than when everything is compressed into one unreadable string.

The CSS Compressor (available separately on this site) does the reverse — taking formatted CSS and collapsing it to a single minified line for production deployment. A typical workflow is to beautify a stylesheet to read and edit it, then compress it again before shipping. Both tools run entirely in your browser with no server uploads, so proprietary or unreleased styles never leave your machine.

Ready to ship? CSS Compressor collapses the formatted stylesheet back to a single minified line for production.

How It Works

The formatter scans the CSS character by character, tracking brace depth as it goes rather than relying on regular-expression matching of whole rules, which is what lets it handle arbitrarily nested @media and @supports blocks correctly. Every opening brace increases the indentation level and starts a new line; every semicolon ends a declaration and starts the next one on a fresh, correctly indented line; every closing brace decreases the indentation level and is placed on its own line followed by a blank line for visual separation between rule blocks. Only whitespace and line breaks are changed — all selectors, property names, values, comments, and vendor prefixes are preserved exactly as typed, with no reordering or rewriting of your actual CSS.

How to Use

Paste your CSS

Paste minified or messy CSS code into the editor.

Beautify

Click "Beautify CSS" to format the code with consistent indentation, spacing, and line breaks.

Customize style (optional)

Set indent size, brace style, and whether to sort properties alphabetically.

Copy or download

Copy the formatted CSS to your clipboard or download it as a .css file.

Who Uses This Tool

🎨

Frontend Development

Format minified CSS from third-party libraries to understand and debug styles during development.

🔍

Code Review

Beautify CSS before reviewing a pull request so each property and rule is clearly legible.

📋

CMS Themes

Format CSS exported from WordPress or Shopify theme editors to make it editable and maintainable.

🧹

Legacy Code Cleanup

Format years-old unindented CSS stylesheets so you can understand and safely refactor them.

📚

Learning CSS

Paste minified framework CSS (e.g. Bootstrap, Tailwind compiled output) to read and study the actual rules.

🛠️

Debugging Layouts

Format inline or minified CSS before pasting into browser DevTools to more easily spot broken rules.

Why Choose This Tool

Instant In-Browser Formatting

CSS is formatted entirely in your browser — no upload, no server round-trip, results appear in milliseconds.

Handles Media Queries & At-Rules

The formatter correctly handles @media, @keyframes, and @supports blocks with proper nesting and indentation.

No File Size Limits

Paste any amount of CSS — the tool runs locally so there are no server-enforced limits on input size.

One-Click Copy

Copy the entire formatted CSS output to your clipboard with a single click for immediate use.

Free — No Account Required

No subscription or per-use credits. Sign up free to track usage and access account features.

Pairs with CSS Compressor

Use the Beautifier during development to read code, then use the Compressor to minify it before deployment.

Key Benefits

Formats CSS with consistent 2-space indentation

Handles media queries, keyframes, and other at-rules with correct nesting

Each property placed on its own line for easy scanning

Preserves comments, custom properties, and vendor prefixes untouched

Copy output with one click

100% browser-based — no uploads

Frequently Asked Questions

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iLoveDocsTools is used by students, professionals, and businesses across the United States, Canada, United Kingdom, Australia, India, and more than 100 other countries. All tools are browser-based and process files privately — your files never leave your device. Free to use, with Pro plans for unlimited access.

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