Developer

✨

Code Formatter

Beautify and format JavaScript, CSS, HTML, and more

Language

Indent

Print Width

Powered byPrettier

Input

Output

Formatted code will appear here...

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What is Code Formatter?

Free online code formatter to format and beautify code in multiple languages including JavaScript, TypeScript, CSS, HTML, JSON, Markdown, and YAML.

Powered by Prettier, the industry-standard code formatter. Automatically fixes indentation, spacing, line breaks, and bracket placement with opinionated, consistent formatting. Configure tab width and select your language. Perfect for cleaning up minified code or enforcing consistent style. All formatting runs locally in your browser using Prettier's standalone WASM bundle. No signup required.

How to Use Code Formatter

1Paste your code into the input editor
2Select the programming language from the dropdown
3Adjust tab width (2 or 4 spaces)
4Click Format or press Ctrl+Enter to format
5Copy or download the formatted code from the output panel

Frequently Asked Questions

JavaScript, TypeScript, JSON, HTML, CSS, Markdown, and YAML. Each language is formatted using Prettier's dedicated parser for accurate, consistent results.

The formatter uses Prettier's standalone browser bundle that runs entirely in your browser. No code is sent to any server, making it safe for proprietary code.

Yes. You can set tab width (2 or 4 spaces) and select the target language. Prettier applies its opinionated formatting rules to ensure consistent, readable output.

Prettier is the most popular opinionated code formatter used by millions of developers. It enforces a consistent style by parsing your code and re-printing it with its own rules, ensuring uniform formatting across your project.

Paste the minified code, select JavaScript or TypeScript, set your preferred tab width, and format. The output expands everything onto properly indented lines so you can read and debug it.

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