JavaScript Beautifier

Format and beautify your JavaScript code with proper indentation. Turn minified JS into clean, readable code.

Beautify JavaScript

Paste your JavaScript code below

How It Works

  1. Paste your JavaScript code
  2. Choose indent size & options
  3. Click Beautify
  4. Copy or download the result

Features

  • Configurable indent size
  • Preserve newlines option
  • Handles functions & loops
  • Supports ES6+ syntax

Your text is processed entirely inside your browser.

Related Tools

JS Minifier

Minify your JavaScript code by removing comments and whitespace.

Use Tool

HTML Beautifier

Format and indent your HTML code.

Use Tool

CSS Beautifier

Format and pretty-print your CSS code.

Use Tool

Frequently Asked Questions

What does the JavaScript beautifier do?

It formats minified or messy JavaScript code by adding proper indentation, line breaks, and structure, making code readable and maintainable.

Can I preserve original newlines?

Yes. The beautifier offers an option to preserve existing line breaks while still adding proper indentation.

Is my JavaScript uploaded to a server?

No. All processing happens entirely in your browser. Your code never leaves your device.

Does it handle ES6+ syntax?

Yes. The beautifier handles modern JavaScript syntax including arrow functions, template literals, destructuring, and more.

Read Guide: JavaScript Beautifier Guide