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JavaScript Beautifier

Format and beautify minified or messy JavaScript code.

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Input

Press Ctrl+Enter to run

Fill in the fields and click Run

Your result will appear here instantly

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What is JavaScript Beautifier?

The Free JavaScript Beautifier formats and beautifies minified or messy JavaScript code. Adds proper indentation, line breaks, and structure. Makes JS readable and easier to debug. Supports ES6+ syntax.

How to Use JavaScript Beautifier

  1. [1]Paste your messy or minified JavaScript
  2. [2]Click Beautify
  3. [3]View formatted JavaScript with proper indentation
  4. [4]Copy the beautified result

Common Use Cases

  • ▸Web developers reading minified JS in production
  • ▸Debuggers analyzing compiled JavaScript
  • ▸Students learning JavaScript structure
  • ▸Security researchers analyzing obfuscated JS
  • ▸Anyone needing to read and understand JavaScript quickly

Related Free Tools

▸JavaScript Minifier▸HTML Beautifier▸Regex Tester▸Meta Tag Preview▸API Response Mock Generator
Built byDhanu Decodes·Free forever, no sign-up required·Last updated June 2026

Frequently Asked Questions

How do I beautify JavaScript?
Paste minified or messy JavaScript and the tool formats it with proper indentation, line breaks, and readable structure.
Does it work with minified code?
Yes, even single-line minified code is properly formatted into readable, well-indented JavaScript.
Do I need to install anything?
No installation needed. The tool runs in any modern web browser (Chrome, Firefox, Safari, Edge). All processing happens client-side for speed and privacy.

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