The easiest way to edit bytecode is to edit it as decompiled source. This does not work for highly complex cases and obfuscation, but for most simple edits its all you’ll ever need to do. Simply …

Recaf is an open-source Java bytecode editor that simplifies the process of editing compiled Java applications. To make things easier Recaf abstracts away much of the class file format . …

There are two main ways to make changes. Editing the decompiled code as source code, and making bytecode level changes. If your input file is not obfuscated and you have configured …

Nov 1, 2022 · Recaf can edit bytecode if it’s a small change like changing a string. Exporting the decompiled jar into something like IntelliJ using luyten, and fixing decomposition errors and …

If your change is a simple one-liner you can write it as pure source code with the EXPR statement. For example, EXPR System.out.println(argString); or EXPR if (argBool) return true; …

Recaf exposes almost all of its functionality through modular API's. Automating behaviors can be done easily with scripts, or with plugins for more complex situations. Additional features can …

Dec 25, 2020 · Firstly is recompiling decompiled code. The key difference is that Recaf will manage compiler dependencies for you. Drop in your file, add your libraries and make your …

This is a plugin for Recaf which can automatically detects a Minecraft Forge Mods version using the mcmod.info and applies the correct mapping. It also allows you to export the Forge MDK …

Dec 25, 2020 · 2.X aims to make reverse engineering as user friendly as possible. How so? Here's the gist: Can't find a dependency? Don't worry, Recaf will dynamically generate missing …

Access variables by names instead of indices for clearer disassembled code; Convert snippets of Java source code to bytecode sequences automatically; Searching for a variety of different …