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JavaScript Formatter & Beautifier

Format and indent JavaScript and TypeScript source code cleanly with customizable brace and quote preferences.

  • 100% free
  • Files stay on your device
  • No sign-up, no watermark
Indent:
Input Code
Formatted Code

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What is JavaScript Formatter & Beautifier?

The JavaScript Formatter makes minified or poorly formatted code readable again. It adds line breaks after statements, indents blocks consistently with 2 spaces, 4 spaces or tabs, and normalises spacing around operators and braces. It is useful for reading third-party scripts, debugging production bundles, or tidying snippets before sharing. Formatting does not change what the code does.

How to use JavaScript Formatter & Beautifier

  1. 1

    Paste JavaScript

    Paste the code or load the sample.

  2. 2

    Choose indentation

    Pick 2 spaces, 4 spaces or tabs.

  3. 3

    Copy the result

    The formatted code appears instantly.

Frequently asked questions

Can it restore original variable names from minified code?

No. Minifiers rename variables permanently; formatting restores structure and indentation, not names.

Does it support TypeScript and JSX?

It formats standard JavaScript syntax; most TypeScript and simple JSX format correctly, but complex type annotations may not.

Will my code run differently after formatting?

No. Only whitespace and line breaks change.

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