JavaScript Formatter

Format and beautify JavaScript code with proper indentation and spacing

JavaScript Input

Add newline at end of file
function () vs function()
Keep existing line breaks
Break .method() chains to new lines

📄 Formatted JavaScript

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Original Lines
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Formatted Lines
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Characters
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Size Change

📥 Before Formatting

function example(){const a=10;const b=20;if(a

📤 After Formatting

function example() { const a = 10; const b = 20; if (a < b) { console.log('a is less than b'); return a + b; } else { console.log('a is greater than or equal to b'); return a - b; } } const result = example();

🎯 Common Use Cases

• Minified code readability • Code review preparation • Debugging assistance • Consistent team formatting • Learning code structure

⚙️ Formatting Features

• Proper indentation • Consistent spacing • Line break optimization • Function formatting • Chain method breaking • Comment preservation

🎯 What is JavaScript Formatting?

JavaScript formatting (also called beautifying or prettifying) is the process of adding proper indentation, spacing, and line breaks to JavaScript code to make it more readable and maintainable.

Why format JavaScript? Well-formatted code is easier to read, debug, and maintain. It helps developers understand code structure, identify bugs faster, and collaborate more effectively on projects.

Safe processing: Our formatter only changes whitespace and formatting - it never modifies the actual functionality of your code.

🔧 Formatting Options

  • Indentation: Choose between spaces or tabs for code indentation
  • Indent size: Control the number of spaces for each indentation level
  • Final newline: Add a newline character at the end of the file
  • Function parentheses: Control spacing before function parentheses
  • Preserve newlines: Keep existing line breaks where appropriate
  • Chain breaking: Break method chains across multiple lines for readability
  • Consistent style: Apply uniform formatting throughout your code