JSArmor

Advanced JavaScript Obfuscator for protecting source code.

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Overview

JSArmor is a lightweight JavaScript obfuscator designed to protect source code from reverse engineering.

It transforms readable JavaScript into a more complex and difficult-to-analyze form while preserving runtime behavior.

The goal of JSArmor is to provide simple CLI usage with strong code protection techniques.

The idea for this project was taken from Pyarmor

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Features

• String encryption
• Variable and function renaming
• Control flow obfuscation
• Dead code injection
• Unicode encoding
• Anti-debugging protection
• Self-defending runtime

These techniques increase the difficulty of reverse engineering and static analysis.

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Installation

Install globally using npm.

npm install jsarmor

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Quick Start

Obfuscate a JavaScript file:

jsarmor gen <main file>
Ex: jsarmor gen index.js

Output will be generated in:

dist/obf.js

Run the protected file normally with Node.js.

node dist/obf.js

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Demo

Before Obfuscation

function greet(name) {
  const message = "Hello " + name
  console.log(message)
}

greet("world")

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After Obfuscation

(function(_0x2a41c2,_0x3e8f7a){
const _0x5f3b=['log','Hello','world']
(function(_0x11b2c3,_0x58e0f1){
while(!![]){
try{
const _0x12c8d9=parseInt(_0x11b2c3())+parseInt(_0x11b2c3())
if(_0x12c8d9===_0x58e0f1)break
else _0x5f3b.push(_0x5f3b.shift())
}catch(_0x1c7b45){
_0x5f3b.push(_0x5f3b.shift())
}}
})(function(){return _0x5f3b.shift()},0x1234)

console[_0x5f3b[0]](_0x5f3b[1]+' '+_0x5f3b[2])
})()

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Project Structure

jsarmor
 ├ cli/
 │  └ index.js
 ├ core/
 │  ├ antidebug.js
 │  ├ beautifyGuard.js
 │  ├ controlflow.js
 │  ├ deadcode.js
 │  ├ junkcode.js
 │  ├ parser.js
 │  ├ rc4.js
 │  ├ renamer.js
 │  ├ runtime.js
 │  ├ selfdefend.js
 │  ├ stringArray.js
 │  └ unicode.js
 └ utils/
    └ random.js

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Roadmap

Version 2 (unlock at ⭐ 15 stars)

Planned features:

• Multiple obfuscation levels (low / medium / high)
• Stronger string encryption
• CLI output customization
• Improved dead code generation

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Version 3 (unlock at ⭐ 100 stars)

Planned advanced protection:

• JavaScript VM-based obfuscation
• Advanced anti-debugging techniques
• Anti-tamper protection
• Runtime integrity checks
• Code virtualization
• Web Dashboard

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Contributing

Contributions are welcome.

You can help by:

• Reporting bugs
• Suggesting new obfuscation techniques
• Improving performance
• Opening pull requests

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Support

If you encounter issues or have questions:

Open an issue on GitHub in here.

For direct contact:

Link Bio

https://eboy.asia/p.n

GitHub

https://github.com/Swp-dev/JavascriptArmor

Follow me on the tiktok

https://tiktok.com/@niemtinthatxaxi

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License

MIT License

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Built for developers who want to protect JavaScript code.