Webcrack

<p align="center"> <img src="https://user-images.githubusercontent.com/55899582/231488871-e83fb827-1b25-4ec9-a326-b14244677e87.png" width="200"> </p> <h1 align="center">webcrack</h1>

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.

<!-- TODO: add 26 on release -->

[!NOTE]
webcrack depends on isolated-vm, which does not recommend using odd-numbered Node.js releases because they frequently break ABI/API compatibility with V8.

Command Line Interface

bashCopy
npm install -g webcrack@latest

Examples:

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

CLI Reference

API

bashCopy
npm install webcrack@latest

Examples:

jsCopy
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

Donations

If this project has helped you, consider donating to support its development:

• GitHub Sponsors
• Ethereum: 0xb3eFD474Dd8aFA715F563EfA322F6ae9Ae9DfCeA
• Bitcoin: bc1qc3u7ef2rue75f6t8x290r0qk0u84f0ln8ndjun
• Solana: 6w9SFAYBxCKdtuj8DEAV9YT5zP68g4PyEkb21AmdxcBq
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