What JavaScript features does this beautifier support?

The beautifier supports ES6+ syntax including arrow functions, template literals, destructuring, async/await, and optional chaining. It also handles JSX and minified code.

Can I customize the formatting options?

Yes. You can choose between tabs and spaces, set the indent size, preserve or collapse line breaks, control brace style, and toggle options like adding space before function parentheses.

Is my code sent to a server?

No. All formatting is done in your browser using the js-beautify library. Your code never leaves your device.

JavaScript Beautifier

Format and beautify JavaScript code with proper indentation. Supports ES6+, JSX, and minified code.

Options

Indent: 2 spaces

Use tabs

Preserve line breaks

End with newline

Space before function ()

Brace style

Wrap line length: No wrap

Input JavaScript

Beautified JavaScript

About JavaScript Beautifier

Paste minified, obfuscated, or poorly-formatted JavaScript and get clean, readable code in a single click. The tool uses the open-source js-beautify library and runs entirely in your browser — your code never leaves your device.

Key Features

Full ES6+ support — arrow functions, template literals, destructuring, async/await
Tabs or spaces with adjustable indent size (1–8)
Four brace styles: collapse, expand, end-expand, none
Optional line wrapping at a custom column
Preserve or collapse existing line breaks
Space before anonymous function parentheses toggle
Copy or download the formatted output

How to Use

Paste your JavaScript code in the input area
Adjust formatting options in the side panel
Click Beautify
Copy or download the result

When Is This Useful?

Reading minified production bundles or third-party scripts
Cleaning up auto-generated or transpiled code
Standardising formatting before a code review
Converting between brace or indentation styles

Privacy

All processing happens locally. No code is uploaded, stored, or shared. Safe for proprietary and sensitive projects.