A free C, C++ and Fortran IDE
The GNU Prolog native compiler
A Forth compiler with a little difference
The Small Device C Compiler (SDCC), targeting 8-bit architectures
A free COBOL compiler
fast, portable Pascal compiler using gnu c as intermediate code
Interpreter and compiler for the Seed7 programming language.
amforth is an extendible interpreter on microcontrollers
Graphical programming. Includes n-dimensional sorting.
Cobol Cross reference tool for GnuCobol written in Cobol
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
A BASIC interpreter and compiler with graphics.
Open Source C & C++ IDE for Windows
Programming language with expressive power and a simple implementation
A low-level system programming language with high-level syntax
Translator from restricted matlab to C