Free standalone forth system for x86. Chuck's articles on forth. VLSI design tool in Forth. ColdForth Kernel - ColdFire Forth for Motorola ColdFire chips. Freeware compiler system to develop text mode Forth applications.
Source code is freely available.
ANS'94 compliant, current language standard. FreeBSD 2.0.5, using Wil Baden's pinhole optimizer. Embedded Forth Compilers - Forth systems for AVR, PIC and MSP430. At Taygeta Scientific, Inc. FIJI ForthIsh Java Interpreter - Written in Java, full GPL source. Runs in command line or AWT window.