JS Beautifier
Developer ToolsBeautify and format JavaScript code. Auto-indent, organize imports, and improve readability.
How to use JS Beautifier
- 1Enter your input in the text area above
- 2Click the action button to process your data
- 3View the result and copy it to your clipboard
Common Use Cases
Quick Processing
Process your data quickly and efficiently.
Secure & Private
All processing happens in your browser.
Free to Use
This tool is completely free with no signup.
Mobile Friendly
Works on any device with a browser.
Frequently Asked Questions
What does JS Beautifier handle?
Our tool reformats minified or obfuscated JavaScript by: proper indentation, spacing around operators, breaking long chains, organizing imports, formatting objects/arrays, and preserving comments. Works with ES6+ syntax including arrow functions, async/await, and destructuring.
Can it handle modern JavaScript?
Yes! Full support for: ES6+ (let/const, arrow functions, template literals), async/await, classes, modules, optional chaining (?.), nullish coalescing (??), and JSX/TSX. The beautifier understands modern syntax and formats it correctly.
Does it preserve comments?
Absolutely. All comments are preserved: single-line (//), multi-line (/* */), and JSDoc comments (/** */). Comments keep their position relative to the code they describe, with proper indentation.
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