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Code Beautifier

Beautify and format code in JavaScript, TypeScript, HTML, CSS, JSON, and more. Auto-indent and clean up messy code with configurable style options.

Used 5.3K times today

How to Use Code Beautifier

  1. 1

    Paste your code

    Copy your messy, minified, or auto-generated code and paste it into the input area.

  2. 2

    Select language

    Choose the programming language from the dropdown — JavaScript, TypeScript, HTML, CSS, JSON, Python, or others.

  3. 3

    Beautify and copy

    Click "Beautify" to format the code with proper indentation and style, then copy the result for use in your project.

Frequently Asked Questions

Which languages does the code beautifier support?
The beautifier supports JavaScript, TypeScript, JSX, TSX, HTML, CSS, SCSS, JSON, Markdown, and GraphQL. More languages may be added over time.
Can I configure indentation size and style?
Yes. You can choose between 2-space, 4-space, or tab indentation. Additional options like single vs double quotes for JavaScript/TypeScript are also available.
Is this the same as running Prettier?
This tool uses Prettier under the hood for supported languages, so the output follows the same opinionated formatting rules as Prettier — the industry standard for JavaScript/TypeScript projects.

About Code Beautifier

The Code Beautifier formats and auto-indents source code in multiple languages using Prettier, the most widely adopted code formatter in the JavaScript ecosystem. Whether you have received minified code, auto-generated output, or simply want to apply consistent formatting to a snippet, this tool cleans it up instantly without requiring a local development environment.

Consistent code formatting improves readability, reduces merge conflicts, and enforces team style conventions. Use this tool to quickly format one-off snippets, clean up code before pasting into documentation, or verify how Prettier would format a particular piece of code before configuring it in your project.

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