Repositories list

• RetroMCP-Java

  Public
  A rewrite of MCP to provide support for many versions of Minecraft which were never supported by original MCP

  javaminecraftretro+ 1retrogaming

  Java

  •

  MIT License

  •43•352•8•0•Updated Feb 21, 2026Feb 21, 2026

• BetterJSONs

  Public
  Improved version JSONs for Official Minecraft Launcher

  JavaScript

  •2•6•2•0•Updated Feb 18, 2026Feb 18, 2026

• LaunchWrapper

  Public
  Launch wrapper for legacy Minecraft

  javaminecraftwrapper+ 1launcher

  Java

  •

  MIT License

  •9•46•4•1•Updated Feb 3, 2026Feb 3, 2026

• MCPHackers.github.io

  Public
  HTML

  •

  MIT License

  •5•1•1•0•Updated Jan 17, 2026Jan 17, 2026

• RetroDebugInjector

  Public
  RetroDebugInjector is a library used to modify, remap and decompose Java bytecode.

  javainjector

  Java

  •

  BSD 2-Clause "Simplified" License

  •0•6•0•0•Updated Dec 4, 2025Dec 4, 2025

• legacy-lwjgl3

  Public
  A wrapper that creates a bridge between legacy LWJGL2 API and LWJGL3

  Java

  •

  GNU Lesser General Public License v2.1

  •23•5•1•1•Updated Oct 7, 2025Oct 7, 2025

• WrappedJSONGen

  Public
  An utility to generate Minecraft version JSONs with LaunchWrapper as the launch method

  Java

  •

  MIT License

  •1•0•0•0•Updated Mar 3, 2025Mar 3, 2025

• LWJGL2

  Public
  Java

  •0•1•0•0•Updated Aug 15, 2024Aug 15, 2024

• DiffPatch

  Public
  Java

  •

  MIT License

  •15•1•0•0•Updated Aug 25, 2023Aug 25, 2023

• libraries

  Public
  Maven repo with libraries for other projects

  0•0•0•0•Updated Aug 18, 2023Aug 18, 2023

• OfficialMappings

  Public
  Minecraft deobfuscation mappings for old versions based off official Mojang mappings

  4•5•0•0•Updated Jan 13, 2023Jan 13, 2023

• RetroFernflower

  Public
  Unofficial mirror of FernFlower Java decompiler (All pulls should be submitted upstream)

  Java

  •724•0•0•0•Updated Aug 14, 2022Aug 14, 2022

• MCPEnigma

  Public
  minecraftmcpenigma

  Java

  •

  GNU Lesser General Public License v3.0

  •1•12•0•0•Updated Jun 26, 2022Jun 26, 2022

• AlphaMappings

  Public
  minecraft

  GNU General Public License v2.0

  •0•1•0•0•Updated Jun 8, 2022Jun 8, 2022

• Stitch

  Public
  Stitch is a set of tools for working with and updating Tiny-format mappings. Potentially a future replacement for Weave.

  Java

  •

  Apache License 2.0

  •34•0•0•0•Updated Jun 8, 2022Jun 8, 2022

• Enigma

  Public
  This is a fork of cuchaz's engima, a deobfuscation/remapping tool for Java software.

  Java

  •

  GNU Lesser General Public License v3.0

  •124•1•0•0•Updated May 29, 2022May 29, 2022

• MCInjector

  Public archive
  Public tools from the MCP team

  Java

  •

  Other

  •23•0•0•0•Updated May 17, 2022May 17, 2022

• Matcher

  Public
  Tool for tracking elements in obfuscated Java archives across releases

  Java

  •

  GNU General Public License v3.0

  •47•0•0•0•Updated Apr 24, 2022Apr 24, 2022

• RetroMCP

  Public archive
  A modification of MCP to provide support for many versions of Minecraft which were never supported by original MCP

  Python

  •16•16•0•1•Updated Mar 21, 2022Mar 21, 2022

• ClassicMappings

  Public
  minecraft

  GNU General Public License v2.0

  •2•0•0•0•Updated Feb 22, 2022Feb 22, 2022

• IndevMappings

  Public
  minecraft

  GNU General Public License v2.0

  •1•1•0•0•Updated Feb 5, 2022Feb 5, 2022

• Vault

  Public archive
  Creative Commons Zero v1.0 Universal

  •2•0•0•0•Updated Jan 19, 2022Jan 19, 2022

• ReleaseMappings

  Public
  0•0•0•0•Updated Jan 3, 2022Jan 3, 2022

• BetaMappings

  Public
  0•0•0•0•Updated Nov 26, 2021Nov 26, 2021

• InfdevMappings

  Public
  minecraft

  GNU General Public License v2.0

  •3•1•0•0•Updated Nov 19, 2021Nov 19, 2021

• cfr

  Public
  This is the public repository for the CFR Java decompiler

  Java

  •

  MIT License

  •309•0•0•0•Updated Oct 6, 2021Oct 6, 2021

• SpecialSource

  Public
  Automatic generator and renamer of jar obfuscation mappings.

  Java

  •

  Other

  •54•0•0•0•Updated Sep 26, 2021Sep 26, 2021