CSS Formatter & Beautifier

Formats and beautifies CSS code for consistent style, readability, and maintainability across teams and projects, with optional minification and property sorting.

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988+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how CSS Formatter & Beautifier processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The CSS Formatter & Beautifier parses CSS, applies configurable rules, and outputs a consistently formatted stylesheet. It supports indentation control, comment handling, and property organization. It is designed for front-end developers, build systems, and design-system teams.
Use when consolidating CSS from diverse sources to enforce a single style across codebases.
Conceptually, the tool reads CSS, normalizes whitespace, optionally sorts declarations, and emits text that adheres to chosen style guidelines. It does not modify values or semantics, only layout and spacing.
Benefits include improved diffs, faster code reviews, and easier onboarding for new contributors. Core features include multi-field inputs for code, indentation, style, and options to preserve comments. It is suitable for inclusion in CI pipelines or editor integrations where consistent CSS formatting is required.

Save your calculation history with a free account

How to Use

Provide inputs: paste CSS code and select formatting options.
Choose indentation and output style (expanded/compact/compressed).
Click format (or run) to generate formatted CSS.
Review the formatted output and optional stats.
Export or copy the result for integration into your project.

Frequently Asked Questions

Find Quick Answers

Does the formatter change the semantics of CSS?

No. The formatter only adjusts whitespace, indentation, and property order per settings. Values and selectors remain intact; the tool does not validate or modify CSS semantics.

Can comments be preserved during formatting?

Yes, if preserve_comments is enabled. Block and inline comments are kept in their original positions, subject to output_style settings. Comment removal is possible only when explicitly requested by options.

What happens with invalid CSS input?

If the input CSS is syntactically invalid or incomplete, the formatter reports a parse error and returns no formatted output. This enables programmatic handling of errors in automated pipelines.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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