Self-hosting metacompiled Forth, bootstrapping from a few lines of C; targets Linux, Windows, ARM, RISC-V, 68000, PDP-11, asm.js.

Portable Forth in C

First published Open Source implementation of OpenFirmware

STM8 eForth - a user friendly Forth for simple µCs with docs

Immutable Ordered Key-Value Database Engine

Swapforth is a cross-platform ANS Forth

zForth: tiny, embeddable, flexible, compact Forth scripting language for embedded systems

A Forth dialect implementation for educational purposes

Forth inspired programming language for the ESP8266

A statically typed concatenative systems programming language.

A simple virtual game console

A Bestiary of Single-File Implementations of Programming Languages

libforth: A small Forth interpreter that can be used as a library written in c99

A Forth CPU and System on a Chip, based on the J1, written in VHDL

FlashForth development

Small but complete dynamic Forth Interpreter/Compiler for and in WebAssembly

Modern C64 Forth

Gforth mirror on GitHub (original is on Savannah)

👾 A Forth-based Game Boy development kit

A Subroutine Threaded Code (STC) ANS-like Forth for the 65c02