JS (eval) Encode/Decode

About this JS obfuscation tool

1) In JavaScript, eval can execute any string as code.

2) This tool encodes/decodes JS by wrapping with eval.

3) Warning: eval is dangerous and can lead to injection or XSS.

4) Tip: Use the JS format/minify tool to beautify decoded code.

How to Use

What this tool does

Encodes or decodes JavaScript snippets using escape/unescape around eval for obfuscation demos.

Steps

Encode: paste JS → click Encode to get an eval(unescape(...)) string.
Decode: paste encoded string → click Decode to recover the original code.

Examples

function hi(){alert('hi');} → eval(unescape("%66%75..."))

Security notes

eval is dangerous; never run untrusted code.
This is for educational purposes; avoid using eval in production.