TULKIT

JavaScript Beautifier - Format & Prettify JS Code Online

Transform minified, obfuscated, or messy JavaScript code into clean, readable, and properly formatted code with our free online JavaScript Beautifier. Essential for developers debugging production code or maintaining JavaScript projects.

Why Use Our JavaScript Beautifier?

  • ES6+ Support: Handles modern JavaScript including arrow functions, classes, and modules
  • Debugging Aid: Makes minified production code readable for troubleshooting
  • Smart Formatting: Intelligently handles complex nested structures
  • Free & Unlimited: No limits on usage or file size

Common Use Cases

🐛 Debugging Minified Code

Expand compressed JavaScript from production sites to identify and fix issues.

📊 Code Analysis

Analyze third-party scripts or libraries to understand their functionality.

✨ Code Cleanup

Standardize formatting across your codebase for consistency.

🎓 Learning

Understand complex JavaScript patterns by viewing formatted code.

How to Use This Tool

  1. Paste Your JavaScript: Enter your minified or unformatted JavaScript code in the input field.
  2. Click "Beautify JS": The tool will analyze and format your code with proper indentation.
  3. Review & Export: Check the formatted output, then copy or download as needed.

💡 Tip: This beautifier preserves your original logic while reformatting. Use it alongside a linter for best code quality.

JavaScript Beautifier Tool

About JavaScript Formatting

JavaScript beautification transforms compact or poorly formatted code into a readable structure with proper indentation, line breaks, and spacing. This is particularly valuable when working with minified files or code generated by build tools.

Modern JavaScript includes many syntactic features like arrow functions, template literals, destructuring, and async/await. Our beautifier handles all ES6+ features correctly while maintaining the code's functionality.

Formatting Features

  • Proper indentation for blocks, functions, and objects
  • Consistent brace and bracket placement
  • Smart handling of chained method calls
  • Preservation of comments and string literals
  • Support for JSX (React) syntax

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