Can I beautify ES6 and modern JavaScript?

Yes. The beautifier supports all modern JavaScript including ES6+ features: arrow functions, template literals, destructuring, async/await, classes, and modules.

Does beautification make obfuscated code readable?

Beautification adds formatting but cannot restore original variable names or structure if the code was obfuscated. It makes the structure readable, but obfuscated variable names (a, b, c1) remain.

Will beautification change my code logic?

No. Beautification only adds whitespace and formatting. All statements, expressions, and logic remain exactly as in the original code.

Can I beautify JSON with this tool?

JavaScript beautification will format JSON-like structures, but for pure JSON formatting, use the dedicated JSON Formatter tool which validates JSON syntax and formats it correctly.

Why is minified JavaScript hard to read?

Minification removes all whitespace and newlines, often renames variables to single letters, and removes all comments — producing compact but completely unreadable code as a single long string.

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JavaScript Beautifier

Beautify and format JavaScript code with proper indentation and line breaks for readability.

JavaScript Input

Indent: 2

What is JavaScript Beautifier?

The JavaScript Beautifier formats minified, obfuscated, or poorly indented JavaScript into clean, readable code with proper indentation, spacing, and line breaks. It makes compressed production JS immediately readable for debugging, analysis, and editing.

Minified JavaScript is compact but completely unreadable — a single 50KB minified file is often a single line of code. When you need to understand, debug, or modify such code, the beautifier transforms it into readable, properly structured JavaScript in seconds.

Why Use JavaScript Beautifier?

Debugging minified JavaScript, understanding third-party scripts, or working with inherited minified code is nearly impossible without a beautifier. This tool restores code readability instantly, enabling faster debugging and code comprehension without needing source maps.

Key Features of JavaScript Beautifier

✓Formats JS with consistent indentation (2 or 4 spaces)
✓Adds newlines and spacing for readability
✓Handles all JavaScript syntax including ES6+
✓Works on minified and poorly formatted code
✓Preserves all code logic and functionality

How to Use JavaScript Beautifier

1
Paste your JavaScript
Enter minified or messy JS into the beautifier input.
2
Beautify
Click 'Beautify JS' to format and indent the code.
3
Review the output
See properly formatted, readable JavaScript.
4
Copy the result
Click 'Copy' to copy the beautified JS.
5
Use for debugging
Paste into your editor or browser DevTools to read and debug the code.