- BASIC interpreter
- CinF C compiler in Forth source code
- CHForth 1.2.5. metacompiler (zip).
- ForthForth, a non-completed ForthInterpreter, written in Forth
- MetaStic, a MetaCompiler running under MS-DOS
- RASM, the RetroForth Assembler
- Retro3 MetaCompiler written in GForth.
- Retrospect, a debugger written in RetroForth
- TypedTester, provides a modified HayesTester syntax to allow user-defined types.
