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

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  • 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).
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    Downloads: 5,392 This Week
    Last Update:
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  • 2

    Kernelloader

    Run Linux on the Playstation 2

    Kernelloader is a free bootloader for PS2 Linux and other Playstation 2 operating systems. Loading can be done by "Action Replay Media Player", by "memory card exploit", by "FMCB" or any other homebrew loading method. If you downloaded the latest Linux Live DVD, you need to run the online updater to be able to play Youtube videos.
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    Downloads: 133 This Week
    Last Update:
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  • 3
    ELKS is a subset of the Linux kernel that runs on IBM compatible PCs from 8086 up. It is intended to get use out of obsolete old hardware, for use in embedded systems, and as an educational tool. ELKS has been moved to Github to protest SourceForge's installer adware hijacking. This does not directly affect ELKS, but it does affect many major open source projects such as Gimp and FileZilla by attempting to trick the user into installing adware in order to download these programs. I refuse to leave ELKS here with such policies in effect. If you have questions about this, please email jody@c02ware.com.
    Downloads: 10 This Week
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  • 4
    BerserkArch

    BerserkArch

    A bleeding-edge, security-centric Arch-based Linux distribution.

    BerserkArch is a security-focused, performance-tuned Linux operating system (OS) based on Arch Linux, designed for developers, hackers, and technical users. A bleeding-edge, security-centric Arch-based Linux distribution crafted for hackers, developers, and nerds alike. Following the Arch Linux philosophy, it is designed to be highly customizable, allowing users to build their environment with only the components they need, rather than having a lot of pre-installed software like some other security distributions (e.g., Kali Linux). As an Arch-based distribution, it benefits from the rolling release model, providing users with the latest software versions and kernel updates. BerserkArch is a dist "designed to make you powerful" for specific use cases like reverse-engineering binaries and automating exploits, rather than being an easy-to-use distribution for general beginners.
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    Downloads: 35 This Week
    Last Update:
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

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  • 5
    JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.
    Downloads: 6 This Week
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  • 6

    The NitrOS-9 Project

    OS-9/6809 compatible operating system for Tandy CoCo and Dragon

    The NitrOS-9 Project provides an OS-9/6809 compatible operating system for the Tandy/TRS-80 Color Computer and Dragon home computer.
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    Downloads: 5 This Week
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  • 7
    Haiku is an open-source operating system currently in development designed from the ground up for desktop computing.
    Downloads: 10 This Week
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  • 8
    Partition Logic

    Partition Logic

    Disk partitioning and data management for x86-compatible systems

    Based on the Visopsys operating system, Partition Logic is a bootable disk image featuring a disk manager program that can create, delete, erase, format, defragment, resize, copy, and move partitions and modify their attributes. It can copy entire hard disks from one to another. Other tools, such as system diagnostics, are also available within the system.
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    Downloads: 15 This Week
    Last Update:
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  • 9
    HackShark Linux

    HackShark Linux

    Lightweight Linux distro for penetration testing

    Based on MATE environment HackShark Linux is a lightweight distribution for penetration testing, cyber forensic investigation and vulnerability assessment purpose.
    Downloads: 11 This Week
    Last Update:
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  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

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  • 10

    Android on PXA270

    Android on PXA270

    Porting Android to Intel(Marvell) ARM XScale PXA270. A complete build system for embedded Linux and Android on PXA270. It was open source for anyone but no responsibility for any damage resulting from any usage of the software. Demo : http://www.youtube.com/watch?v=3Ine1k4Hzy8 http://www.youtube.com/watch?v=3Xp5zMPOI1c http://www.youtube.com/watch?v=lYzRSNuUsIw http://www.youtube.com/watch?v=1lmmld7LjGM http://www.youtube.com/watch?v=CNGhFmCwaxw Documents : http://sourceforge.net/projects/android-pxa270/files/BringUp_Android_on_PXA270.pdf http://sourceforge.net/projects/android-pxa270/files/Android_Porting_on_PXA270.pdf Checkout the source code : svn co https://android-pxa270.svn.sourceforge.net/svnroot/android-pxa270 android-pxa270 Project host : http://www.mask.org.tw Author : mask.chung@gmail.com Blog : http://www.mask.org.tw/blog Linkedin : http://www.linkedin.com/in/maskchung Donate: Paypal or http://www.mask.org.tw
    Downloads: 3 This Week
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  • 11
    Syllable Desktop is a complete operating system that is easy to use, powerful, lightweight and extraordinarily fast and responsive. It has its own kernel, filesystem, GUI and applications. Syllable Server is a matching small and efficient Linux server.
    Downloads: 2 This Week
    Last Update:
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  • 12

    MiniTAK Operating System

    A small operating system, compatible with MS-DOS, written in assemly

    MiniTAK is a small operating system for x86 computers to run in processor real mode. One of the main goals in designing and developing this operating system was to be fully compatible with MS-DOS operating system and its application programs. To minimize the size of this operating system, it is completely written in assembly language and can boot on any 8088 compatible processor. This project is an attempt to develop an optimized operating system which can be used to replace MS-DOS, adding new modern features. This operating system is completely written by me in 2004, as a result of about 5 years full research and development. And now in 2014, I want to publish it to the world. This operating system supports FAT12 file system, and allow to run many MS-DOS applications.
    Downloads: 9 This Week
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  • 13
    Visopsys

    Visopsys

    Alternative operating system for x86 computers

    Visopsys is an alternative operating system for PC compatible computers. In development since 1997, this system is small, fast, and open source. It features a simple but functional graphical interface, pre-emptive multitasking, and virtual memory. Though it attempts to be compatible in a number of ways, Visopsys is not a clone of any other operating system. You can demo the distribution from a “live” CD/DVD or floppy disk
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    Downloads: 9 This Week
    Last Update:
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  • 14
    AquariusOS

    AquariusOS

    An open source OS written in assembly.

    An open source OS. It is 32-Bit and when possible 64 and 128-Bit. We are working on a complete rewrite. After which we will work on our UI. ATTENTION!: After AquariusOS 0.0.4 AquariusOS will be based off of aqua-next. 0.0.5 with an aqua-next base will hopefully be released BEFORE 2016.
    Downloads: 4 This Week
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  • 15
    HelenOS

    HelenOS

    A microkernel-based multiserver operating system written from scratch.

    HelenOS is a portable microkernel-based multiserver operating system written from scratch. It decomposes key operating system functionality such as file systems, networking, device drivers and graphical user interface into a collection of fine-grained user space components that interact with each other via message passing. A failure or crash of one component does not directly harm others. HelenOS is therefore flexible, modular, extensible, fault tolerant and easy to understand. HelenOS does not aim to be a clone of any existing operating system and trades compatibility with legacy APIs for cleaner design. Most of HelenOS components have been made to order specifically for HelenOS so that its essential parts can stay free of adaptation layers, glue code, franken-components and the maintenance burden incurred by them.
    Downloads: 4 This Week
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  • 16
    Downloads: 3 This Week
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  • 17
    BaltaOS
    BaltaOS: Uno de los OS más conocidos en Argentina. También uno de los OS más intuitivos para el usuario. Hecho en: Argentina, Santa Fe - Piso 1 Saavedra y chacabuco al 1827 Un pequeño grupo de persnas para el desarrolo del mismo.
    Downloads: 2 This Week
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  • 18
    **DISCONTINUED** BOS – B.lu operating System, is an operating system dedicated to small microcontrollers and CPUs without MMU. Actually is dedicated to Texas Instruments MSP430 microcontrollers (it can be ported to other CPUs without great changes)
    Downloads: 1 This Week
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  • 19
    It is a simple operating system that i write in my spare time. It is not the best design and it is buggy but i hope it will get better.
    Downloads: 1 This Week
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  • 20
    An open source operating system for x86.
    Downloads: 1 This Week
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  • 21
    MineBios

    MineBios

    16 bit real mod minecraft clone running in bios

    Downloads: 1 This Week
    Last Update:
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  • 22
    PlusOS (Plus Operating System)

    PlusOS (Plus Operating System)

    OS bootable from Linux,Windows and others partitions as auxiliary OS

    Plus operating system is hobby project. That's built to run as auxiliary OS with Major OS like Windows and Linux etc..bootable with grub2 and own boot loader.focused on eBook reading software(PDF,EPUB,MOBI,DJVU,CHM...).with programs like calculator, notepad,source code editor, hex viewer, text viewer,image viewer and many games.VESA 32bpp GUI from startup.read-only plus maybe writing support for standard file systems FAT/NTFS/EXT/CDFS.codec for archives(ZIP,RAR,7z,GZ ...).codec for image formats(JPG,BMP,GIF,PNG...).video player or at least thumbnails extract(AVI,MKV,MP4,3GP...). mountable as filesystem from ISO,ISZ file.generic drivers VBE,USB,HD Audio,Keyboard, mouse.bootable on qemu and of course on real computer systems.at least all drivers for one computer (my) this is primary goal. In summary goal is building a stable and usefull OS. A Project By Arshad Latti. Support PlusOS project on patreon https://www.patreon.com/arshadlatti to encourage.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Solarstorm

    Solarstorm

    A rethinking of the Operating System Ecosystem.

    This is the fifth or sixth generation of this idea, the big difference being that we have written some bootloader code and have started mapping out the kernel layout and structure. We have decided upon a core programming language for the kernel, and the core language for almost everything else. With a focus on isolating the MAJOR kernel features from the system itself, in what until now has remained research only instances, we hope to create a fully functioning exokerne. All code at this time will be available only via a git repository.
    Downloads: 1 This Week
    Last Update:
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  • 24
    This FreeDOS distribution's primary focus is to provide a single source for updating or obtaining the latest FreeDOS BASE set, with emphasis on compatibility with ReactOS/WinNT (Win32 ports) and modern 386+ computers. FreeDOS is a trademark of Jim Hall
    Downloads: 0 This Week
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  • 25
    el proyecto A.T.L.D. se trata de crear una distribucion basada en software libre funcional moderna destinada en ordenadores limitados pentuim estara basado usando una distro kernel linux y otra micronucleo match con hurd atld es 100 % software libre
    Downloads: 0 This Week
    Last Update:
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