A free C, C++ and Fortran IDE
The GNU Prolog native compiler
A Forth compiler with a little difference
Adversary Emulation Framework
ProGuard, Java optimizer and obfuscator
The Small Device C Compiler (SDCC), targeting 8-bit architectures
Parallel OS, with GUI, Terminal, OO Assembler, Class libraries
A free COBOL compiler
Rapid applications development tool and libraries for FPC
CI maintained precompiled GCC ARM/ARM64 Toolchains for Raspberry Pi
fast, portable Pascal compiler using gnu c as intermediate code
Interpreter and compiler for the Seed7 programming language.
32/64 bit multi-platform Ethernet S7 PLC communication suite
A library containing Some Useful Fortran Routines
amforth is an extendible interpreter on microcontrollers
Graphical programming. Includes n-dimensional sorting.