Java bytecode engineering toolkit

A java obfuscator (GUI)

Jar Analyzer - 一个JAR包分析工具，批量分析，SCA漏洞分析，方法调用关系搜索，字符串搜索，Spring组件分析，信息泄露检查，CFG程序分析，JVM栈帧分析，进阶表达式搜索，字节码指令级的动态调试分析，反编译JAR包一键导出，一键提取序列化数据恶意代码，一键分析BCEL字节码

Public proof-of-concept obfuscator using the MapleIR framework designed by cts & bibl

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

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）

Assembler / Disassembler for Java Bytecode

Java bytecode generation and disassembly tools

A simple (and outdated) Old-School RuneScape decompiler/deobfuscator.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.

Plugin for Recaf

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

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

Strongly referenced bytecode ir for Java

Tool that uses Java Bytecode Analysis on an OSRS Jar File

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

A patch generator for java classes

Referenced based jvm/dalvik bytecode intermediation.

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

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

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.