JavaScript Beautifier

Add line breaks and indentation to compressed JavaScript so its structure becomes visible.

Your text

empty

Result

empty

How to use it

Input

function a(){if(x){return 1;}return 2;}

Result

function a(){
  if(x){
    return 1;
  }return 2;
}

Is my JavaScript executed?

Never. It is treated purely as text — nothing on this page runs the code you paste.

Is my text sent to a server?

No. This tool runs entirely in your browser — nothing you type or paste is uploaded, logged or stored anywhere.

Is there a limit on how much text I can use?

There is no fixed limit. Very large documents depend on your device’s memory, but ordinary pages and files are handled instantly.