Open Source Operating System Kernels

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

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  • 1
    FreeRTOS Real Time Kernel (RTOS)

    FreeRTOS Real Time Kernel (RTOS)

    Market leading real time kernel for 40+ microcontroller architectures

    ************************************************************************************************************************ * The primary FreeRTOS repository is now in Git. Go to https://github.com/freertos for the latest FreeRTOS kernel and libraries. * Our support has moved to https://forums.freertos.org. ************************************************************************************************************************ FreeRTOS is a market-leading real-time operating system (RTOS) for microcontrollers and small microprocessors. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of libraries suitable for use across all industry sectors. Visit https://www.freertos.org for more information and other download options. Note about support/discussions forum: The FreeRTOS support forum has moved to https://forums.freertos.org. Please update your bookmarks and create new posts in the appropriate category in the new community forums.
    Leader badge
    Downloads: 365 This Week
    Last Update:
    See Project
  • 2
    EmuTOS

    EmuTOS

    Free operating system for Atari computers, and more.

    EmuTOS is a TOS compatible operating system for Atari ST series computers, and more. It is made from Digital Research's GPLed original sources and is a free and open source alternative to Atari proprietary ROMs.
    Leader badge
    Downloads: 344 This Week
    Last Update:
    See Project
  • 3
    The XPerience Project
    XPerience it's an AOSP-CAF (Android Open Source and Code Aurora Forum) based rom which aims to bring the perfect combination of both performance and battery life by bringing you our ultimate kernel and system optimizations in order to give you the best XPerience for your Android devices. Because you deserve to use your device's full capabilities without Sacrificing battery life.
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    Downloads: 116 This Week
    Last Update:
    See Project
  • 4
    AospExtended ROM

    AospExtended ROM

    An android custom ROM based on AOSP,which provides a stock experience

    AOSP Extended is an AOSP based rom which provides stock UI/UX with various customisations features along with the Substratum theme engine. The project has been made by cherry-picking various commits from various other projects. Being based on AOSP it provides a smooth and lag-free experience out of the box. We will constantly try to add more features and make it even better in future updates. A ROM by a user, for a user. #StayAOSP #ExtendYourDevice #BeExtended
    Downloads: 85 This Week
    Last Update:
    See Project
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  • 5
    Project LegionOS

    Project LegionOS

    Android Custom Rom

    A AOSP based project that is set to show its power in Battery , Performance and Customization without compromising security.
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    Downloads: 184 This Week
    Last Update:
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  • 6
    The Fresh Project

    The Fresh Project

    Simply Awesome.

    The official home of Fresh, a One UI-based custom firmware for Samsung devices.
    Leader badge
    Downloads: 169 This Week
    Last Update:
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  • 7

    C-BIOS

    C-BIOS is an open source BIOS for MSX computers.

    C-BIOS is an open source BIOS for MSX computers. C-BIOS can be shipped with MSX emulators so they are usable out-of-the-box. This project aims to improve C-BIOS by fixing incompatibilities with the MSX BIOS and the development of a Disk ROM.
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    Downloads: 54 This Week
    Last Update:
    See Project
  • 8
    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: 54 This Week
    Last Update:
    See Project
  • 9
    Downloads: 37 This Week
    Last Update:
    See Project
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  • 10
    ExtendedUI

    ExtendedUI

    New custom-rom that aims to provide different UI

    Downloads: 7 This Week
    Last Update:
    See Project
  • 11
    cakeby
    No for upload testing rom
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Another Kernel
    A kernel for your device
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    PSMKernel

    PSMKernel

    OnePlus Nord (Avicii) Builds of PSM-Kernel

    Downloads: 0 This Week
    Last Update:
    See Project
  • 14

    Resurrection Remix Q for NX563J

    Resurrection Remix Q v8.6.x For Nubia Z17Max (NX563J)

    Resurrection Remix the ROM has been based on LineageOS, and including some features from SlimROM, OmniROM and original Remix ROM builds, all those creates an awesome combination of performance, customization, power and the most new features, brought directly to your device !
    Downloads: 0 This Week
    Last Update:
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  • 15

    dzOS

    A single-user single-task ROM-based OS for my 8-bit homebrew computer

    dzOS is a single-user single-task ROM-based operating system (OS) for my 8-bit homebrew computer dastaZ80, which runs on a Zilog Z80 processor. It is influenced by ideas and paradigms coming from Digital Research’s CP/M, but also from 8-bit computers of the 80s era.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Downloads: 0 This Week
    Last Update:
    See Project
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