A free C, C++ and Fortran IDE
WinLibs standalone build of GCC and MinGW-w64 for Windows
A fast compiler cache
A Forth compiler with a little difference
VHDL 2008/93/87 simulator
A free COBOL compiler
fast, portable Pascal compiler using gnu c as intermediate code
Open Source C & C++ IDE for Windows
Prolog to C compiler with runtime for DOS, Windows and Raspbian
Open Utlity is series of unix utlity just like gnu for linux / windows
Superseded by http://www.ti.com/tool/msp430-gcc-opensource
COBOL compiler for the PC x86-32 platform.