java-bytecode

jar-analyzer/jar-analyzer

Jar Analyzer - 一个 JAR 包 GUI 分析工具，方法调用关系搜索，方法调用链 DFS 算法分析，模拟 JVM 的污点分析验证 DFS 结果，字符串搜索，Java Web 组件入口分析，CFG 程序分析，JVM 栈帧分析，自定义表达式搜索，支持 MCP 调用，文档：https://docs.qq.com/doc/DV3pKbG9GS0pJS0tk

mirkosertic/Bytecoder

Framework to interpret and transpile JVM bytecode to JavaScript, OpenCL or WebAssembly.

superblaubeere27/obfuscator

A java obfuscator (GUI)

skidfuscatordev/skidfuscator-java-obfuscator

Public production-ready obfuscator using the MapleIR framework designed by cts

Tigermouthbear/Theia

A Kotlin program used to analyze and discover backdoors in Minecraft Java 1.12.2 forge mods

dejavudwh/C2j-Compiler

A compiler that converts C language to Java bytecode or can directly interpret execution（将C源码编译成Java字节码的编译器，也可以选择直接解释执行）

Body-Alhoha/OpenEctasy

Minecraft Server (Bukkit, Spigot, Paper) backdoor, using ow2 asm

cojen/Maker

Cojen/Maker is a lightweight, full-featured, low-level dynamic Java class generator designed for ease of use.

junkdog/sift

A CLI tool to analyze and reverse model software system designs from JVM bytecode.

synnkfps/JByteCustom

project discontinued due to lack of performance, usage and some other development issues, rip JByteCustom.

xxDark/AntiAntiDebug

Plugin for Recaf

kylestev/jvm.js

A Java VM bytecode library written in ES6 for Node.js

skidfuscatordev/skidfuscator-ir

Strongly referenced bytecode ir for Java

cojen/Cojen

Java bytecode generation and disassembly tools

minad/chasm

Java Bytecode Assembler and Disassembler which uses S-expressions

Whiley/Jasm

Assembler / Disassembler for Java Bytecode

LouisJenkinsCS/LLVM-JVM

[W.I.P] A Just-In-Time Java Virtual Machine written in Haskell

grompe/BTWTweak

Grom PE's tweak mod for Better Than Wolves Total Conversion

Soxs/OSRSUpdater

A simple (and outdated) Old-School RuneScape decompiler/deobfuscator. Performs field and method analysis which uses ASM and bytecode patterns for identification. Identified fields could be used for creating bot clients or QoL clients. For educational use only.

superblaubeere27/asm-delta

A patch generator for java classes

RaphiMC/ClassTokenReplacer

Gradle plugin to replace string tokens in class files during compile time

MinimallyCorrect/JavaTransformer

Applies transformations to .java and .class files

yuemingl/ExprEngine

ExprEngine compiles a string of expression to java bytecode in memory at runtime

Elzawawy/java-bytecode-generator

A javac-like compiler built over Flex & Bison software tools. It takes in a Java source code file and emits its JVM bytecode & .class files.

superblaubeere27/asm-delta-agent

A Java Agent that applies asm-delta patches

Deagler/osrsupdater

Tool that uses Java Bytecode Analysis on an OSRS Jar File

caoimhebyrne/Injector

A Kotlin / Java library for modifying classes at runtime using ASM

kaitai-io/java_bytecode.ksy

Java bytecode spec for Kaitai Struct

aki-ks/tactical

Referenced based jvm/dalvik bytecode intermediation.

anjaleeps/BytecodeOptimizer

A Java program to optimize jar files. The optimizer was designed as a part of the Ballerina language platform but can be used with any language that compiles into Java bytecode.

kingdevnl/mixinagent

macroing/CEL4J

Code Engineering Library for Java

tmurakami/classinjector

[DEPRECATED] A library that provides the ability to inject classes into a class loader.

SiriusNEO/CoconutJVM

A toy JVM (Java Virtual Machine) written in C++. For learning purpose.

taylordotfish/java-compiler

Toy Java bytecode interpreter and x86-64 compiler