developer Tools

JavaScript Beautifier

Format and beautify minified or messy JavaScript code.

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What is JavaScript Beautifier?

JavaScript beautification transforms minified or poorly formatted code into clean, readable code with proper indentation, line breaks, and spacing. This makes code easier to understand, debug, and maintain. Our beautifier formats JavaScript with customizable options for indentation style and size.

How to Use JavaScript Beautifier

1. Paste your minified or messy JavaScript code 2. Choose indentation style (spaces or tabs) 3. Select indentation size (2 or 4 spaces) 4. Click "Beautify" to format the code 5. Copy or download the formatted result

Common Use Cases

  • Making minified JavaScript readable
  • Standardizing code formatting across a team
  • Debugging compressed third-party scripts
  • Preparing code for review or documentation
  • Converting messy legacy code to clean format

Frequently Asked Questions

Will beautifying change my code behavior?

No, beautification only changes whitespace and formatting. The logic and functionality remain exactly the same.

Should I beautify code for production?

No, for production you should minify code for better performance. Beautified code is for development and debugging.

Can it format ES6+ syntax?

Yes! Our beautifier supports modern JavaScript including arrow functions, destructuring, async/await, and more.