Freeze (package) Python programs into stand-alone executables
A Hex Editor for Reverse Engineers, Programmers
RetDec is a retargetable machine-code decompiler based on LLVM
An open-source x64/x32 debugger for windows
Capstone disassembly/disassembler framework
multi-platform cross assembler for 6502/6510/65816 cpu
An x86 assembler that aims to be compatible with MASM and TASM
SIMD macro assembler unified for ARM, MIPS, PPC and x86
A machine code manipulation library for Intel 64 and IA-32.
Open-source disassembler for x86/x64 machine code (New BSD License!)
Japheth's assembler, JWasm