JS Minifier & Beautifier

Minify JavaScript for production or beautify for better readability with advanced processing options

Processing Options

JavaScript Input

JavaScript Code

// Sample JavaScript code for demonstration
function calculateTotal(items) {
  let total = 0;
  
  for (let i = 0; i < items.length; i++) {
    if (items[i].price && items[i].quantity > 0) {
      total += items[i].price * items[i].quantity;
    }
  }
  
  return total;
}

const userData = {
  name: 'John Doe',
  email: 'john@example.com',
  preferences: {
    theme: 'dark',
    notifications: true
  }
};

// Event listener example
document.addEventListener('DOMContentLoaded', function() {
  const button = document.getElementById('calculate-btn');
  
  if (button) {
    button.addEventListener('click', function(event) {
      event.preventDefault();
      
      const items = [
        { price: 10.99, quantity: 2 },
        { price: 5.50, quantity: 1 },
        { price: 15.00, quantity: 3 }
      ];
      
      const total = calculateTotal(items);
      console.log('Total amount: $' + total.toFixed(2));
    });
  }
});

// Arrow function and modern ES6+ features
const processData = async (data) => {
  try {
    const response = await fetch('/api/process', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify(data)
    });
    
    if (!response.ok) {
      throw new Error('Network response was not ok');
    }
    
    return await response.json();
  } catch (error) {
    console.error('Error processing data:', error);
    return null;
  }
};

Lines: 63Characters: 1430

Tool Features

JavaScript Minification

• Removes comments and unnecessary whitespace
• Compresses code for production deployment
• Reduces file size significantly
• Preserves functionality while optimizing size
• Supports modern ES6+ syntax

JavaScript Beautification

• Proper indentation and formatting
• Improves code readability
• Consistent coding style
• Better for debugging and maintenance
• Customizable formatting options

What is a JavaScript Minifier/Beautifier?

A JavaScript Minifier/Beautifier is a dual-purpose web development tool that both compresses JavaScript code (minification) and formats it for readability (beautification). Minification reduces file size by removing whitespace, comments, and unnecessary characters, improving website performance. Beautification formats code with proper indentation and spacing, making it easier to read and maintain. This tool helps developers optimize code for production while also maintaining readable code for development and debugging. Whether you're preparing code for production, cleaning up legacy code, or improving code quality, this tool provides both minification and beautification capabilities. Access more coding tools in our web development resources for JavaScript optimization and code quality improvement.

How to Minify or Beautify JavaScript?

Using the JavaScript minifier/beautifier is simple:

Enter JavaScript Code: Paste or type your JavaScript code into the input field, or upload a JavaScript file.
Choose Mode: Select minify to compress code for production, or beautify to format code for readability.
Configure Options: Set formatting options like indent size, brace placement, and compression settings.
Process Code: Click process to minify or beautify your JavaScript code according to your selected mode and options.
View Results: See the processed code, compression statistics (if minifying), or formatted output (if beautifying), then copy or download.

This tool is essential for web developers optimizing code for production, frontend engineers maintaining code quality, or anyone who needs to both compress and format JavaScript code for different purposes.

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What is a JavaScript Minifier/Beautifier?

How to Minify or Beautify JavaScript?

Using the JavaScript minifier/beautifier is simple:

Enter JavaScript Code: Paste or type your JavaScript code into the input field, or upload a JavaScript file.

Choose Mode: Select minify to compress code for production, or beautify to format code for readability.

Configure Options: Set formatting options like indent size, brace placement, and compression settings.

Process Code: Click process to minify or beautify your JavaScript code according to your selected mode and options.

View Results: See the processed code, compression statistics (if minifying), or formatted output (if beautifying), then copy or download.