Open Source Desktop Operating Systems Operating System Kernels

Operating System Kernels for Desktop Operating Systems

Browse free open source Operating System Kernels and projects for Desktop Operating Systems below. Use the toggles on the left to filter open source Operating System Kernels by OS, license, language, programming language, and project status.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
    Try it Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    ReactOS

    ReactOS

    An operating system based on the best Windows NT design principles

    ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).
    Leader badge
    Downloads: 3,470 This Week
    Last Update:
    See Project
  • 2
    AROS Research Operating System
    The AROS Research Operating System is an effort to implement an Open Source and portable operating system that is compatible with AmigaOS(TM). Originally, it was meant as a direct reimplementation, but already has features not existing in AmigaOS.
    Leader badge
    Downloads: 174 This Week
    Last Update:
    See Project
  • 3
    The FreeDOS Project

    The FreeDOS Project

    FreeDOS is an open source DOS-compatible operating system

    FreeDOS is an open source DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or write new DOS programs. Any program that works on MS-DOS should also run on FreeDOS.
    Downloads: 39 This Week
    Last Update:
    See Project
  • 4
    QNAP NAS GPL Source

    QNAP NAS GPL Source

    QNAP GPL Source

    GPL source for QNAP Turbo NAS
    Leader badge
    Downloads: 121 This Week
    Last Update:
    See Project
  • Secure remote access solution to your private network, in the cloud or on-prem. Icon
    Secure remote access solution to your private network, in the cloud or on-prem.

    Deliver secure remote access with OpenVPN.

    OpenVPN is here to bring simple, flexible, and cost-effective secure remote access to companies of all sizes, regardless of where their resources are located.
    Get started — no credit card required.
  • 5
    DOS/32 Advanced DOS Extender is a drop-in replacement for the DOS/4GW DOS Extender and compatibles. Being fast, small and flexible DOS/32A can be used in many environments, from embedded systems to DOS emulators, by both developers and end users alike.
    Leader badge
    Downloads: 30 This Week
    Last Update:
    See Project
  • 6
    Components supporting real-time, reliability, high-availability, and security services in standard operating environments. Starting with the C5 modular microkernel, a RT-POSIX layer based on FreeBSD 4.1, and the CDE cross-development environment.
    Leader badge
    Downloads: 23 This Week
    Last Update:
    See Project
  • 7
    Perix is a MS-DOS compatible program, capable of running without an underlining OS. It is written in Turbo Pascal and Assembly. All parts of system are distributed under terms of the GNU General Public License v2.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 8
    Haiku is an open-source operating system currently in development designed from the ground up for desktop computing.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 9
    RMF-DOS is a project to create a compact, 8086-compatible, free clone of MS-DOS.
    Downloads: 12 This Week
    Last Update:
    See Project
  • Crowdtesting That Delivers | Testeum Icon
    Crowdtesting That Delivers | Testeum

    Unfixed bugs delaying your launch? Test with real users globally – check it out for free, results in days.

    Testeum connects your software, app, or website to a worldwide network of testers, delivering detailed feedback in under 48 hours. Ensure functionality and refine UX on real devices, all at a fraction of traditional costs. Trusted by startups and enterprises alike, our platform streamlines quality assurance with actionable insights. Click to perfect your product now.
    Click to perfect your product now.
  • 10
    The Saint Jude Project is a Project to develop Kernel-Level IDS mechinisms to protect the integrity of host systems.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11

    TIPC Cluster Domain Sockets

    Cluster wide IPC providing datagram, connection, and bus messaging

    The Transparent Inter Process Communication service can best be described as a cluster wide equivalent to the Unix Domain Socket IPC, but with much more features. Go to http://www.tipc.io for more details.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 12

    MEOS

    32 bit low level Operating System

    This site will be a gift to MenuetOS, a 32 bit assembly coded operating system from Finland, Russia and Hungary.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 13
    Cambridge Z88

    Cambridge Z88

    Software development for 4Mb portable, using Z80 CPU and AA batteries

    This project is for the portable computer "Cambridge Z88", produced by Sir Clive Sinclair (of ZX Spectrum fame). We continue to support software development (ROM, 3rd party apps on memory cards and desktop applications). We have moved to https://cambridgez88.jira.com/wiki (development, source code and documentation). However, we continue to publish files for download here.
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    This is the free Developer Edition of BeOS 5 PE with updated drivers & Software. The Developers are the most important people we needed for the success of BeOS and later OpenBeOS.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 15

    OpenVPN 2.3.2 I003nvp

    IPv6 compatibility

    First version of OpenVPN opensource software that is compatible with IPv6.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 16
    DOS-C Kernel is an MS-DOS compatible kernel and the original FreeDOS kernel.
    Leader badge
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Public Domain Operating System (currently x86 and 80386 and S/370 and S/390). Note that latest source code is here in git, but latest executables and packaged source are at http://pdos.org
    Leader badge
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    Ancient Linux on Windows

    Ancient Linux on Windows

    Building and running ancient Linux on Windows

    While I may have started with Linux 0.11, I've expanded this to include several older relases of the Linux kernel that you can cross compile from Windows, and run on Qemu. I've managed to get the older versions of the software tools running on Windows, so that there is no major invasive source changes, outside of either broken drivers, or massaging the makefiles to find things in the new paths, and calling the appropriate tools where needed. Linux 0.10 is the first oldest version of Linux that is somewhat usable. While it lacks things like TCP/IP, and robust filesystems, it does offer a small kernel size, perfect for playing around with. You can comfortably make changes on Windows, re-compile and test all from a 'normal' desktop.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 19
    This is GIMI, the Graphical Interfaced Multitasking Interpreter. One of the few GUIs made in QuickBASIC featuring multitasking. This one has its own script language for making programs, damm fast SVGA modes, lots of programs, and more!
    Leader badge
    Downloads: 3 This Week
    Last Update:
    See Project
  • 20
    Computer Manager is the first OS that takes advantage of the DOS and Linux filesystems. It also makes doing jobs easier for everyone. Once it is complete, it will be made available to everyone!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    JonOS is an open source 16 bit operating system written 100% in assembly.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    A distribution of FreeDOS which strives for Ease-Of-Use and Stability, aiming to offer a regular release schedule, utilizing the wide range of DOS-APPS available.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Pascal Operating System, That will translate Freedos to Pascal --OSPine written in Turbo Pascal and NASM. I think now I will make all that useful before I release. Thank for Feedback (^_^)
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    Sensa

    Sensa

    Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..

    Sensa is not an operating system, is a work environment compatible with Android © 4.4.4, Firefox OS ©, Linux Ubuntu 12.12 ©, MacOS Classic 7 ©, MS -DOS © operating systems, and Microsoft Windows 8.1 ©; whose distribution is free, and with source code available under GNU GPL 2.0 license .
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25

    jArt Java Operating System

    IA-32 operating system with Java virtual machine embedded into the ker

    IA-32 operating system with Java virtual machine embedded into the kernel. Part of the kernel is written in Java. Only Java applications can run on this system. jArt VM is a stand-alone virtual machine that interprets java bytecode. It can run under Linu
    Downloads: 2 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.