JavaScript Beautifier
Format and beautify JavaScript code with proper indentation and line breaks.
JavaScript Code Formatting
Readable JavaScript is a foundation of maintainable front-end code. Consistent indentation, spacing around operators, and newlines after statements make code easier to understand, debug, and review.
The JavaScript beautifier reformats compact or minified code into a standard layout with 2-space indentation and consistent structure.
Unminifying Third-Party JavaScript
When debugging third-party scripts or analyzing obfuscated code, beautification is an essential first step. It transforms a single-line minified file into a structured, readable format where you can add breakpoints and trace execution flow.
Note that variable names in heavily minified code (a, b, c) cannot be recovered — only formatting is restored.
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Frequently Asked Questions
Can I use this to unminify JavaScript?
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Yes. The beautifier adds indentation and newlines to minified JavaScript, making it readable again. Complex minification with variable renaming cannot be reversed.
Does the beautifier handle modern JavaScript syntax?
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The beautifier handles standard JavaScript syntax including functions, objects, arrays, and control flow. TypeScript-specific syntax like type annotations may not be fully supported.