AI Summary: webcrack is a reverse engineering tool designed for JavaScript that deobfuscates code produced by obfuscator.io, unminifies, and unpacks files from webpack and browserify, aiming to restore the original source code structure. Notable features include performance optimizations, auto-detection of code patterns, and the removal of obfuscator artifacts, all implemented in TypeScript with a robust testing suite. The tool is accessible via a command line interface and offers an API for integration into other applications.

README

webcrack

webcrack is a tool for reverse engineering javascript. It can deobfuscate obfuscator.io, unminify, transpile, and unpack webpack/browserify, to resemble the original source code as much as possible.

Try it in the online playground or view the documentation.

• 🚀 Performance - Various optimizations to make it fast
• 🛡️ Safety - Considers variable references and scope
• 🔬 Auto-detection - Finds code patterns without needing a config
• ✍🏻 Readability - Removes obfuscator/bundler artifacts
• ⌨️ TypeScript - All code is written in TypeScript
• 🧪 Tests - To make sure nothing breaks

Requirements

Node.js 22 or 24.

Command Line Interface

npm install -g webcrack

Examples:

webcrack input.js
webcrack input.js > output.js
webcrack bundle.js -o output-dir

CLI Reference

API

npm install webcrack

Examples:

import fs from 'fs';
import { webcrack } from 'webcrack';

const input = fs.readFileSync('bundle.js', 'utf8');

const result = await webcrack(input);
console.log(result.code);
console.log(result.bundle);
await result.save('output-dir');

API Reference