GForth

GForth is an open-source implementation of the Forth programming language. It provides an interactive Forth interpreter and a compiler that translates Forth source into executable code, making it suitable for both rapid development and performance-oriented applications. Designed for portability, GForth is intended to run on a wide range of operating systems and hardware architectures, and it is written primarily in C to ease porting to new targets.

GForth supports the ANS Forth standard along with extensions common in Forth practice, and it ships with a large standard library that covers file I/O, string handling, data structures, math, and system interfaces. The system uses a dictionary-based memory model in which new words (functions) are defined by the user and can extend the environment at runtime.

The project emphasizes portability and self-contained builds. It can be built on many Unix-like systems, Windows, and macOS, and typically does not require vendor-specific tools beyond a C compiler and a standard build toolchain. GForth also provides facilities for embedding or linking Forth into other programs, enabling Forth-powered scripting or extension layers.

GForth is widely used for education, research, and hobbyist projects, as well as for rapid prototyping of algorithms and control logic in embedded contexts. It is maintained by an open community with documentation, tutorials, and a collection of example programs.