A FORTH in 340 bytes — the smallest real programming language ever as of yet.

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

a tiny self-hosted Forth implementation

Forth inspired programming language for the ESP8266

A server-side web framework written in Forth.

Bootstrapping a Forth interpreter from hand-written tiny ELF binary. Just for fun.

A not-so-small Forth for Cortex-M

Modern C64 Forth

Forth Lisp Python Continuum: A small highly dynamic self-bootstrapping language

Ray tracer with phong lighting, reflections, refractions, normal mapping, procedural textures, super sampling, and depth of field.

Gforth mirror on GitHub (original is on Savannah)

A Small Lisp in Forth

A simple, indirect-threaded Forth, written in C; for target compiling; runs on Linux, BSD, OSX, and Cygwin

:r4 concatenative programming language with ideas from ColorForth.

Emacs clone in Forth.

Conway's Game of Life in APL in FORTH: how to implement a weird programming language using another weird programming language

Multi-platform desktop Forth based on Tcl/Tk

Advanced and very powerful scheduler, scripting tool and automation manager

a minimalistic Forth kernel that can bootstrap

A generic system for creating i86 implementations of the language Forth.

A general purpose Forth library

A game engine written in SwiftForth.

Experimental Forth cross compiler for tiny devices

SP-Forth

r3 programing language for 64 bits Windows/Linux/Mac/Rasberry Pi 4

A Forth dialect implementation for educational purposes

A Forth-like programming language that targets the AbleVM