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@osfree-project

osFree project

The open source OS/2 successor

Hi there 👋

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osFree is a Free Open Source software operating system development project, aiming to replace eventually all OS/2 subsystems with Open source analogues. It aims for OS/2 Warp 4 (Merlin) as a base compatibility system, which does not mean that we will not support features of newer (OS/2 Warp Server for e-business, eComStation and ArcaOS) OS/2 versions. This includes rewriting not only user-level code but the OS/2 kernel too.

Getting started

It is, first of all, development project. So, you need to download and configure build environment first. Read http://osfree.org/doku/en:develop:guidelines for more information.

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  1. osfree osfree Public

    osFree - open source Operating System/2 clone, usermode parts.

    C 151 13

  2. FreeLdr FreeLdr Public

    FreeLDR - highly configurable boot loader

    C 6 1

  3. DOS DOS Public

    DOS Personality

    C 9

  4. FamilyAPI FamilyAPI Public

    Shared API for DOS and OS/2 to produce dual mode applications

    Assembly 1

  5. WIN16 WIN16 Public

    osFree Janus: Open-Source Windows 3.0 Clone

    C 61 4

  6. doskrnl doskrnl Public

    Forked from FDOS/kernel

    Modified FreeDOS kernel - implements DOSKRNL for osFree MVM

    C 2

Repositories

Showing 10 of 44 repositories
  • osfree Public

    osFree - open source Operating System/2 clone, usermode parts.

    osfree-project/osfree's past year of commit activity
    C 151 13 15 0 Updated Nov 7, 2026
  • DOS Public

    DOS Personality

    osfree-project/DOS's past year of commit activity
    C 9 0 7 0 Updated Oct 26, 2026
  • WIN16 Public

    osFree Janus: Open-Source Windows 3.0 Clone

    osfree-project/WIN16's past year of commit activity
    C 61 4 18 0 Updated Oct 26, 2026
  • notepad Public

    Open source notepad clone for windows 3.x

    osfree-project/notepad's past year of commit activity
    C 9 LGPL-2.1 0 3 0 Updated Oct 25, 2026
  • clock Public

    Windows 3.x Clock open source clone

    osfree-project/clock's past year of commit activity
    C 7 LGPL-2.1 0 1 0 Updated Oct 25, 2026
  • taskman Public

    Windows 3.x TaskMan clone

    osfree-project/taskman's past year of commit activity
    C 6 1 2 0 Updated Oct 25, 2026
  • sysedit Public

    Windows 3.x sysedit.exe clone

    osfree-project/sysedit's past year of commit activity
    C 4 GPL-3.0 0 0 0 Updated Oct 25, 2026
  • pifedit Public

    PIFEDIT for Windows 3.x

    osfree-project/pifedit's past year of commit activity
    C 6 GPL-3.0 0 1 0 Updated Oct 25, 2026
  • clipbrd Public

    Windows 3.x clipboard viewer clone

    osfree-project/clipbrd's past year of commit activity
    C 4 GPL-2.0 0 2 0 Updated Oct 25, 2026
  • winver Public

    Windows 3.x winver clone

    osfree-project/winver's past year of commit activity
    C 6 LGPL-2.1 0 3 0 Updated Oct 21, 2026