CSS Formatter – Validation and Formatting Hub

Polish CSS stylesheets into readable, consistent code with customizable Prettier-powered formatting.

Input

Formatted Output

Formatting Options

Line width

Indent width

Use tabsEnable

Use single quotesEnable

Examples

Minified CSS

body{margin:0;padding:0}h1{color:red;font-size:24px}

Media query

@media(max-width:768px){.container{width:100%;padding:10px}}

How does the CSS Formatter work?

Your stylesheet is parsed into an abstract syntax tree through Prettier and PostCSS, then rewritten according to the preferences you set. Nested selectors, media queries, and at-rules are realigned so the cascade is easy to scan and diff.

Formatting preferences are applied in real time and any syntax issues are surfaced with human-readable error messages. Sample inputs make it simple to test edge cases, and one-click copy keeps your workflow quick.

What is CSS and why should you format it?

CSS (Cascading Style Sheets) describes how HTML should be presented. It governs layout, typography, responsiveness, and accessibility for every component across your product.

Without consistent formatting, stylesheets invite regressions, slow code reviews, and make adherence to design systems harder. Clean formatting reduces Git noise, accelerates onboarding, and keeps performance tooling accurate.

Professional use cases

Integrate the tool into a pre-commit hook or CI job to guarantee design system compliance across distributed teams and white-label projects.

Use the formatted output when publishing tutorials, documentation, or marketing snippets so that every code example looks unified and production-ready.

Frequently Asked Questions

How do I integrate the formatted CSS into my project?

Copy the output straight into your stylesheet, or mirror the same settings in your Prettier configuration so automated formatting and the tool stay in sync.

Does the tool support Sass or Less syntax?

This formatter targets plain CSS. For Sass or Less features, use the dedicated preprocessors in the formatters catalog so language-specific constructs remain intact.

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CSS Formatter – Professional Stylesheet Beautifier

Polish CSS stylesheets into readable, consistent code with customizable Prettier-powered formatting.

The CSS Formatter harnesses Prettier's PostCSS parser to restructure minified or messy stylesheets without changing their behavior. Adjustable line width, tab width, tabs versus spaces, and quote mode help you mirror team conventions, while the tool lazily loads only essential plugins to stay fast on enterprise-sized files. Server-rendered metadata, robust copy, and resilient error handling make the page SEO-friendly and dependable inside modern delivery pipelines. Use it as a browser-based safety net before handing CSS to designers, CMS editors, or deployment scripts.

Keywords

#css formatter#format css#css beautifier#prettier css#stylesheet formatting#clean css code

Looking for more? Explore other Formatters tools

CSS Formatter – Validation and Formatting Hub

Polish CSS stylesheets into readable, consistent code with customizable Prettier-powered formatting.

Input

Formatted Output

Formatting Options

Line width

Indent width

Use tabsEnable

Use single quotesEnable

Examples

Minified CSS

body{margin:0;padding:0}h1{color:red;font-size:24px}

Media query

@media(max-width:768px){.container{width:100%;padding:10px}}

How does the CSS Formatter work?

What is CSS and why should you format it?

CSS (Cascading Style Sheets) describes how HTML should be presented. It governs layout, typography, responsiveness, and accessibility for every component across your product.

Professional use cases

Integrate the tool into a pre-commit hook or CI job to guarantee design system compliance across distributed teams and white-label projects.

Use the formatted output when publishing tutorials, documentation, or marketing snippets so that every code example looks unified and production-ready.

Frequently Asked Questions

How do I integrate the formatted CSS into my project?

Copy the output straight into your stylesheet, or mirror the same settings in your Prettier configuration so automated formatting and the tool stay in sync.

Does the tool support Sass or Less syntax?

This formatter targets plain CSS. For Sass or Less features, use the dedicated preprocessors in the formatters catalog so language-specific constructs remain intact.

CSS Formatter – Professional Stylesheet Beautifier