RenderDoc is a stand-alone graphics debugging tool
A free C, C++ and Fortran IDE
an object-oriented language with late binding
A header-only C++ library for accessing files in ELF binary format
A native Windows port of the GNU Compiler Collection (GCC)
Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp
C / C++ everything-memory debugger
zCOBOL portable mainframe COBOL compiler, part of the z390 project