Open Source Forth Compilers

Mecrisp - A family of optimising native code Forth implementations for MSP430, ARM Cortex M, RISC-V RV32IM(C), MIPS M4K and FPGAs.

ANS Forth for Win32 and Linux/x86 (used to compile the following SF projects: acWEB, acFTP, acFreeProxy, acSMTP, Forth-Script)

Win32Forth is ANS compatible, Forth language application development system with many tools; Interactive console, integrated extensible debugger, a GUI file editor, hypertext rendering, hyperlinked source files. VIEW <word-name> to explore the many files

4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, BASIC interpreter, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.

colorForth is, in Chuck Moore's own words: "A dialect of Forth that uses color to replace punctuation. Includes its own operating system. Produces extremely compact programs. Instant compile from pre-parsed source."

Mops is a full-featured, object-oriented stand-alone programming language for Mac OS X. Its interactive development environment provides for fluid and productive programming by allowing quick testing and modification of small code segments.

The Portable Forth Environment implements the ANSI Forth Standard, it is fully written in C, the newer version has a module concept, and it is fully multithreaded. Autoconf used. Tested in embedded environments.

amforth is an extendable command interpreter running on AVR ATmega and TI MSP430 microcontrollers. The Risc-V and ARM architectures are ascending. Turnkey actions for IoT workloads are possible as well. The command language is close to the Forth 2012 standard.

Forth/2 is a native code kernel Forth system for OS/2. Source in Microsoft Assembler is included.

MinForth V3.4 is a classic Forth system with command-line interface. Development resource requirements are minimal. A source text editor and a C compiler are sufficient. By design no toolchain is required to adapt or rebuild MinForth. A complete rebuild takes only few seconds. Current sources are for Windows and Linux (32-bit or 64-bit). MinForth primitive definitions are written in mixed Forth and C language and are transpiled to pure C code. Main but not exclusive application for the transpiler is to build the MinForth V3.4 high-level Forth compiler. MinForth V3.4 is widely conformant to the Forth-2012 draft standard and passes the usual test suites. Feedback and bug reports are welcome per - Usenet forum https://groups.google.com/forum/#!forum/comp.lang.forth - email to minforth@gmx.net

bigFORTH is a native code Forth for x86 processors. MINOS is a portable GUI library for X11 and Win32, written in object oriented Forth, and includes the form editor Theseus.

guiForth is a customized version of pForth that provides bindings to the FLTK library. The initial goal is to create a software development system for the Agenda VR3 PDA, but guiForth should be portable to any platform that has FLTK.

Compiler for a Forth-like language to make small binaries that use system calls instead of the C library

Forth compiler for the Compiled Virtual Machine

Calforth is a variant of the forth computer language. It will run as a forth interperter, as well as strictly compile an executable. Version 1.3 includes support for the 8051 processor and includes a processor emulator as well.

This project originally was about a megaman clone called "Game Developer Man". Game Developer Man, the game, has long since tanked. However this project has moved on to the KRGP.

This is fast 32bit FORTH system for PalmOS 2.x/6.x having the following features: Programming directly on PalmOS device, Full ANS 94 compatibility, Fast 32bit and 64bit arithmetic, Multitasking kernel, Supporting PalmOS from 2.0 to 6.0

Forth Compiler/Interpreter, fig-Typ (1.0), 'indirectly threaded code', für ia32-pc-linux/ELF-Rechner; unabhängig von externen programmen, libc u.dgl.

A virtual machine providing a dynamic, portable assembler; JIT compilation; C bindings; and Forth semantics.

Forth interpreter done for .NET. Just a way to learn Forth, CIL and more C#.

Fifth is a exciting project to develop a new programming language that has all the capabilityits of C to develop low-level drivers, but uses a postfix syntax and has many high-level features from LISP and ML.

Rainbow Forth is an implementation of the colorForth dialect of the Forth programming language designed to run under Linux or Windows.

16 bit Forth for PC. No OS required.

A Portable Forth. It is aimed to be interpreted, or compiled to various architectures and VMs.