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JS Formatter

Format and beautify JavaScript code with proper indentation, spacing, and structure for better readability

javascriptjsformatterbeautifiercodeformatprettify

JavaScript Formatter

Format and beautify JavaScript code with proper indentation and spacing

Formatting Options

Input JavaScript

Formatted Output

📝 About JavaScript Formatter

• Automatically formats JavaScript code with proper indentation and spacing

• Supports both formatting (beautifying) and minifying JavaScript code

• Customizable indentation size and type (spaces or tabs)

• Handles keywords, operators, braces, and comments properly

• All processing happens locally in your browser

• Great for cleaning up messy or minified code

About JS Formatter

The JavaScript Formatter tool helps developers format and beautify their JavaScript code for better readability and maintenance. It automatically adds proper indentation, spacing, and line breaks to make your code clean and professional. Perfect for cleaning up minified code or improving code structure.

✨ Key Benefits

  • Format messy or minified JavaScript code
  • Improve code readability and maintainability
  • Standardize code formatting across projects
  • Save time on manual code formatting
  • Copy formatted code to clipboard
  • Real-time formatting as you type
  • Customizable formatting options
  • Works entirely in your browser

🚀 Features

  • Automatic JavaScript code formatting
  • Proper indentation and spacing
  • Line break optimization
  • Bracket and parentheses alignment
  • Semicolon insertion
  • String and comment preservation
  • Error handling for invalid syntax
  • Minified code expansion
  • Copy to clipboard functionality
  • Real-time preview

💡 Use Cases

  • Formatting minified JavaScript code
  • Cleaning up messy legacy code
  • Standardizing team code formatting
  • Preparing code for code reviews
  • Making code more readable for debugging
  • Converting one-liner code to readable format
  • Educational purposes for learning JavaScript
  • Preparing code for documentation

🎯 Fun Facts

  • JavaScript was created in just 10 days by Brendan Eich
  • Proper code formatting can improve readability by 40%
  • Well-formatted code reduces debugging time significantly
  • JavaScript is the most popular programming language
  • Code formatting tools have been around since the 1970s
  • Consistent formatting helps team collaboration

📚 Historical Context

  • JavaScript was originally called LiveScript
  • The first JavaScript formatter was created in 1996
  • JSLint was one of the first JavaScript quality tools
  • Prettier revolutionized automatic code formatting
  • ESLint introduced configurable formatting rules
  • Modern IDEs have built-in formatters