Does it support ES6+ syntax?

Yes. Arrow functions, template literals, destructuring, async/await and other modern JavaScript syntax are handled correctly.

Is my data uploaded to a server?

No. All formatting runs locally in your browser using JavaScript. Your code never leaves your device.

Can it unminify obfuscated code?

The beautifier restores indentation and line breaks, but cannot reverse variable name mangling (e.g. a, b, c). It makes the structure readable — not the semantics.

Does it work for TypeScript or JSX?

Basic TypeScript and JSX files will format correctly as long as the brace and statement structure is standard. Complex type annotations may produce minor formatting quirks.

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JavaScript Beautifier

Beautify and format minified JavaScript code with proper indentation and spacing. Supports ES6+ syntax. Free, private, runs entirely in your browser.

💻 Developer Tools Free Browser-based

Tool

Paste JavaScript

Indent:

Result Lines: 0

Why Beautify JavaScript?

Minified JavaScript bundles variable names shortened and all whitespace removed — ideal for production but unreadable for debugging. The JS Beautifier re-indents the code, adds line breaks after statements, and restores consistent spacing so you can read, audit and modify the code easily.

What Gets Formatted

Element	Formatting applied
Blocks `{ }`	Open brace on same line, close brace on new line
Statements	Each statement on its own line, indented by depth
Strings	Content preserved, no line breaks inserted inside strings
Comments	`// line` and `/* block */` comments preserved
Operators	Spaces added around operators for readability

Beautify vs Minify

Use the JS Beautifier to inspect and debug third-party scripts or your own minified bundles. Before deploying, use the JavaScript Minifier to reduce file size for faster page loads.

JavaScript Beautifier

Why Beautify JavaScript?

What Gets Formatted

Beautify vs Minify

Frequently Asked Questions