Free online JavaScript code formatter and beautifier. Supports indent adjustment, brace placement, and whitespace optimization. Make messy JS code clean and readable.
Zero Dependencies Β· Works Offlineπ JS Code Beautifier
Paste messy JavaScript code and beautify it with one click. | No registration Β· Data never leaves your device
β FAQ
Is the JS Code Beautifier free?
Yes, it is completely free to use with no signup or login required.
Is my data secure?
Yes. The tool runs entirely in your browser. Your code is never uploaded to any server.
What JS versions are supported?
Supports ES5, ES6+, TypeScript, and all modern JavaScript syntax.