JavaScript Beautifier
Readable indentation and line breaks for JavaScript—runs entirely in your browser.
Output
Output will appear here.
How to use
Paste or edit code on the left, then Beautify for two-space indentation and preserved line breaks. Everything stays in your browser.
The tool does not execute or compile your code—it only reformats text. Split very large files into chunks for a smoother tab.
Keyboard: Ctrl/Cmd+Enter to beautify.