procyon

A JavaScript port of the Procyon decompiler.

Example

const fs = require("fs");
const { decompile } = require("./procyon.js"); // get it from the dist/ directory or jsDelivr

const data = fs.readFileSync("./your/package/HelloWorld.class"); // read a class file
console.log(await decompile("your/package/HelloWorld", {
    source: async (name) => {
        /* provide classes for analysis here, including the one you want to decompile */

        console.log(name); /* internal name, e.g. java/lang/Object */
        return name === "your/package/HelloWorld" ? data : null /* class not available */;
    },
    options: {
        /* see https://github.com/run-slicer/procyon/blob/main/src/main/java/run/slicer/procyon/impl/ProcyonOptions.java */
    },
}));

Or see the browser-based proof-of-concept in the docs directory.

Licensing

The supporting code for this project is licensed under the MIT License. The Procyon decompiler is licensed under the Apache License 2.0.

This project is not affiliated with, maintained or endorsed by the Procyon project in any way. Do NOT report issues with this project to the Procyon issue tracker.