Browse free open source Forth Interpreters and projects below. Use the toggles on the left to filter open source Forth Interpreters by OS, license, language, programming language, and project status.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

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  • Lightspeed golf course management software Icon
    Lightspeed golf course management software

    Lightspeed Golf is all-in-one golf course management software to help courses simplify operations, drive revenue and deliver amazing golf experiences.

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  • 1
    ANS Forth for Win32 and Linux/x86 (used to compile the following SF projects: acWEB, acFTP, acFreeProxy, acSMTP, Forth-Script)
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    Downloads: 70 This Week
    Last Update:
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  • 2
    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
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    Downloads: 82 This Week
    Last Update:
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  • 3
    PowerMops
    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.
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    Downloads: 18 This Week
    Last Update:
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  • 4

    VolksForth

    A small, self-hosting 16bit Forth system

    VolksForth is a 16bit Forth System with the goal to produce a manageable Forthsystem for computer systems with restricted system resources.
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    Downloads: 4 This Week
    Last Update:
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 5
    MinForth

    MinForth

    A minimalistic but complete standard Forth compiler in C

    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
    Downloads: 12 This Week
    Last Update:
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  • 6
    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.
    Downloads: 6 This Week
    Last Update:
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  • 7
    Ficl is a lightweight, embeddable scripting language designed to be incorporated into other programs, including memory constrained embedded systems. Ficl conforms to the 1994 ANSI Standard for Forth, and provides several useful extensions including object oriented programming that can wrap compiled code and hardware interfaces. Unlike Lua or Python, Ficl acts as a component of your system - you feed it stuff to do, it does the stuff, and comes back to you for more. You can export compiled code to Ficl, execute Ficl code from your compiled code, or interact. Your choice. Ficl includes a simple but capable object model that can wrap existing data structures. Applications include scripting, hardware bring-up, rapid prototyping, and system extensions.
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    Downloads: 10 This Week
    Last Update:
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  • 8

    amforth: Interpreter on Microcontrollers

    amforth is an extendible interpreter on microcontrollers

    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.
    Downloads: 6 This Week
    Last Update:
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  • 9
    FTH Forth Scripting

    FTH Forth Scripting

    FTH Forth Scripting

    FTH provides running stand alone Forth scripts like Ruby etc. and using Forth as an extension language to your application.
    Downloads: 4 This Week
    Last Update:
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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  • 10
    lang5
    A Perl based interpreter for a language which is a blend of Forth and APL. The power of lang5 stems from its arrays operations in conjunction with the underlying Forth programming paradigm of bottom up programming.
    Downloads: 1 This Week
    Last Update:
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  • 11
    Wisp is a small Scheme-like language designed to be easily used in various structured data processing tools. The accent is on simplicity, automatical generatibility, and efficiency. (Currently on long hiatus. Gauche has similar goals and is maturer.)
    Downloads: 1 This Week
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  • 12

    bif-c, a near fig-FORTH in C

    Building a FORTH in C for practice.

    Buggy C language implementation of my BIF 6809 variant of fig-FORTH. May be interesting to programmers with C background who want to understand the high-level version of the low-level of FORTH. Those requiring a functioning FORTH should look elsewhere. (The releases are usually out of date. Best to browse the code repository and download the latest snapshot.) There is now a basic how-to to get you started in the [wiki]. (The OSDN mirror at http://sourceforge.jp/projects/bif-c/ is becoming inaccessible.)
    Downloads: 1 This Week
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  • 13
    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.
    Downloads: 0 This Week
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  • 14
    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
    Downloads: 0 This Week
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  • 15
    Forth Compiler/Interpreter, fig-Typ (1.0), 'indirectly threaded code', für ia32-pc-linux/ELF-Rechner; unabhängig von externen programmen, libc u.dgl.
    Downloads: 0 This Week
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  • 16
    A virtual machine providing a dynamic, portable assembler; JIT compilation; C bindings; and Forth semantics.
    Downloads: 0 This Week
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  • 17
    Tools to incrementally build customised Forth Virtual Machines for embedded applications. Token compiler converts token description into C code templates. PC console application includes FVM, it is used to compile and debug bytecodes for target FVM.
    Downloads: 0 This Week
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  • 18
    Forth interpreter done for .NET. Just a way to learn Forth, CIL and more C#.
    Downloads: 0 This Week
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  • 19
    Forpost is an embeddable, interpreted stack-based(Forth-like) language which has simple, compact and effective implementation in ANSI C. Main features: heterogeneous arrays, higher-order functions, program/data equivalence.
    Downloads: 0 This Week
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  • 20
    Downloads: 0 This Week
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  • 21

    OspreyForth

    A customized pForth Interpreter with dynamic library loading

    OspreyForth is a personal project to make a customized Forth interpreter that can be used to create command-line scripts and general apps. It is currently capable of loading dynamic libraries and using external C code. In the future code that more directly attaches to the interpreter are planned so as to expand its abilities out-of-the-box.
    Downloads: 0 This Week
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  • 22
    16 bit Forth for PC. No OS required.
    Downloads: 0 This Week
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  • 23
    A Portable Forth. It is aimed to be interpreted, or compiled to various architectures and VMs.
    Downloads: 0 This Week
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  • 24
    Gigabyte-scale persistent object Store in C++. Able to intern and persist arbitrary ELF loadble objects. Convenient class library (Lists, Strings, Dicts, Namespaces, etc.) optimised for spatial locality of reference. Virtual machine toolkit.
    Downloads: 0 This Week
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  • 25
    apForth is Another Portable Forth implementation started as pForth fork.
    Downloads: 0 This Week
    Last Update:
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