Capstone disassembly/disassembler framework
Blazing fast and correct x86/x64 disassembler, assembler, decoder, etc
An educational software system of a tiny self-compiling C compiler
RetDec is a retargetable machine-code decompiler based on LLVM
Emulator of the ancient 8 bit microprocessor SC/MP 2
Java classfile assembler/disassembler and interactive low-level editor