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Hazuu Tools

JavaScript Formatter & Beautifier

Format, beautify, and clean up your JavaScript code instantly in a secure, client-side environment.

Input JS
Output
Formatted output will appear here...
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About Javascript Formatter

JavaScript powers interactive experiences across the web, from dynamic page updates to full-scale applications. During production builds, JavaScript is often minified and bundled into dense, unreadable blocks to reduce file size and improve load times.

Our JavaScript Formatter reverses that process, restoring clean indentation, proper line breaks, and readable structure to any minified or messy JS code. Everything runs entirely in your browser — no code is ever sent to a server. Use it to debug third-party scripts, review bundled output, or clean up generated code.

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How to Use

01

Paste Your Code

Copy your minified or messy JavaScript and paste it into the input editor on the left.

02

Format or Minify

Click "Format" to beautify with proper indentation, or "Minify" to compress for production use.

03

Copy the Result

Use the copy button to grab your formatted JavaScript, or download it as a .js file.

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Frequently Asked Questions

What is a JavaScript Formatter? expand_more
A JavaScript Formatter is a tool that takes minified, compressed, or poorly indented JavaScript code and restructures it with consistent indentation, line breaks, and proper spacing to make it human-readable and easy to debug.
Is my JavaScript code secure when using this tool? expand_more
Yes. All formatting is performed locally in your browser using JavaScript. Your code never leaves your machine and is not sent to any external server.
Does this tool support ES6+ syntax? expand_more
Yes. The formatter handles modern JavaScript features including arrow functions, template literals, destructuring, async/await, classes, and modules.
Can I customize the indentation? expand_more
Yes. Choose between 2 spaces, 4 spaces, or tab-based indentation using the selector in the toolbar before formatting your code.
Can I upload a JavaScript file? expand_more
Yes. Click the upload button in the toolbar to load a .js, .jsx, or .mjs file directly from your computer into the editor.