JSONToTable

JavaScript Formatter

Format and beautify JavaScript code with proper indentation

JavaScript Input

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Formatted Output

Formatted JavaScript will appear here

Paste JavaScript code to start formatting

How to Format JavaScript - Step by Step Guide

Step 1

Input Your JavaScript Code

Start by entering your JavaScript code into the formatter. Works with minified code, ES6+, React, Vue, Angular, and Node.js.

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Paste code: Copy JavaScript from your project, browser console, or minified files
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Upload file: Select .js files from your computer for formatting
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Use sample: Click "Sample" to load example JavaScript and see formatting

Example: Minified JavaScript (Before)

Typical minified JavaScript code:

function calculateTotal(items){let total=0;for(let i=0;i<items.length;i++){total+=items[i].price*items[i].quantity;}return total;}
Step 2

View Formatted Output

The formatter instantly beautifies your JavaScript with proper indentation and structure.

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Proper indentation: Clean, consistent spacing with 2-space tabs
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Readable structure: Clear function, class, and object formatting
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Code statistics: Line count and character count displayed

Example: Formatted JavaScript (After)

Beautiful, readable JavaScript:

function calculateTotal(items) {
  let total = 0;
  for (let i = 0; i < items.length; i++) {
    total += items[i].price * items[i].quantity;
  }
  return total;
}
Step 3

Copy or Download Formatted Code

Once formatted, you can easily copy the beautified JavaScript to your clipboard or download it as a file.

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Copy to clipboard: One-click copy for quick use in your projects
•
Download file: Save formatted JavaScript as a .js file
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Use in projects: Paste into your IDE or text editor

Frequently Asked Questions

What is JavaScript formatting?

JavaScript formatting (or beautification) is the process of transforming minified, compressed, or poorly formatted JavaScript code into clean, readable code with proper indentation, spacing, and structure. It makes code easier to read, debug, and maintain.

Does this formatter support ES6+ and modern JavaScript?

Yes! The formatter fully supports modern JavaScript including ES6, ES2015+, arrow functions, async/await, template literals, destructuring, classes, and all modern syntax features used in React, Vue, Angular, and Node.js development.

Can I format minified JavaScript from production builds?

Absolutely! This formatter is perfect for beautifying minified JavaScript from webpack, rollup, or other bundlers. It can transform compressed production code back into readable format for debugging or learning purposes.

Will formatting change how my JavaScript code works?

No! Formatting only changes the visual appearance of your code (indentation, spacing, line breaks). It does not modify the logic, functionality, or behavior of your JavaScript code. The formatted code will execute exactly the same way as the original.

Is my JavaScript code secure? Where is it processed?

Yes, completely secure! All JavaScript formatting happens entirely in your browser using client-side JavaScript. Your code never leaves your computer or gets sent to any server, ensuring complete privacy for your proprietary or sensitive code.

Can I use this for React, Vue, or Angular code?

Yes! The formatter works great with JavaScript from all popular frameworks including React (including JSX syntax), Vue.js, Angular, and Node.js backend code. It handles modern framework patterns and syntax correctly.

How is this different from a JavaScript minifier?

A formatter (beautifier) adds proper indentation and spacing to make code more readable, while a minifier does the opposite - it removes whitespace and compresses code for production. If you need to minify JavaScript instead, check out our JavaScript Minifier tool.

Is this JavaScript formatter free to use?

Yes, completely free with no file size limits, no registration required, and unlimited usage. All formatting features are available at no cost forever.