The Small Device C Compiler (SDCC), targeting 8-bit architectures
XPL Compiler for the XEROX SIGMA 7
Common Lisp compiler and runtime
Ox is an attribute-grammar evaluator generator.
maXbox is a script tool engine, compiler and source lib all in one exe
XPL Compiler for the Modcomp III/IV and Classic
A free COBOL compiler
A free C, C++ and Fortran IDE
A decompiler for Lua 5.x
An FHE compiler for C++
C compiler and dev kit for the z80 with assembly language libraries.
A whole-program optimizing compiler for Standard ML
Interpreter and compiler for the Seed7 programming language.
IBM 360 Optimizing XPL compiler
The regex-centric, fast lexical analyzer generator for C++
ALFOUR Programming language. Simple, safe, power, multi-platform.
ECLiPSe Constraint Logic Programming System
Simple ⇒ Object-Oriented ⇒ Functional
amforth is an extendible interpreter on microcontrollers
Vampirio Code, a great Code Editor and Compiler