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.

  • Veeam Data Platform v13.1 - Get Your Free Trial Icon
    Veeam Data Platform v13.1 - Get Your Free Trial

    Secure by design, portable by default. Recover clean, fast, anywhere. Start a free trial.

    Try Veeam Data Platform today. Experience the unified platform that's secure by design, portable by default, and proven to recover clean, fast, and anywhere.
    Try it Free
  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
    Start Free
  • 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: 4,060 This Week
    Last Update:
    See Project
  • 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.
    Leader badge
    Downloads: 253 This Week
    Last Update:
    See Project
  • 3
    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.
    Leader badge
    Downloads: 263 This Week
    Last Update:
    See Project
  • 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.
    Downloads: 114 This Week
    Last Update:
    See Project
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    Let your crypto work for you

    Put idle assets to work with competitive interest rates, borrow without selling, and trade with precision. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 5
    NuttX

    NuttX

    Real-Time Embedded Operating System

    Nuttx is a real time embedded operating system (RTOS). Its goals are: (1) small footprint usable in deeply embedded, resource constrained environments, (2) fully scalable from tiny (8-bit) to moderate (32-bit), (3) standards compliance, (4) real time, and (5) totally open. Think "Tiny Linux". NuttX is now and Apache project in incubation. See https://nuttx.apache.org/download/ for the latest downloads.
    Leader badge
    Downloads: 14 This Week
    Last Update:
    See Project
  • 6
    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
    Downloads: 62 This Week
    Last Update:
    See Project
  • 7

    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.
    Leader badge
    Downloads: 15 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.
    Leader badge
    Downloads: 24 This Week
    Last Update:
    See Project
  • 9
    Scpsec OS
    Scpsec OS is a modern, lightweight, Debian-based Linux distribution designed to provide a fast, stable, and user-friendly desktop computing experience. Built on the reliability of Debian, Scpsec OS combines performance, simplicity, and security into an operating system suitable for everyday users, developers, students, and IT professionals.
    Leader badge
    Downloads: 37 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 10
    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.
    Leader badge
    Downloads: 36 This Week
    Last Update:
    See Project
  • 11
    Unix-like operating system for the TI-89 and TI-92+ graphing calculators.
    Downloads: 32 This Week
    Last Update:
    See Project
  • 12
    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: 5 This Week
    Last Update:
    See Project
  • 13
    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: 3 This Week
    Last Update:
    See Project
  • 14
    Allo stato attuale Internet non sara totalmente libera fintantochč non saranno completamente libere ed accessibili le strutture fisiche che lo trasportano.CityLAN vuole essere il manifesto di questa libertŕ...
    Downloads: 5 This Week
    Last Update:
    See Project
  • 15
    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: 6 This Week
    Last Update:
    See Project
  • 16

    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: 6 This Week
    Last Update:
    See Project
  • 17
    Cloudium OS

    Cloudium OS

    Written in pure ASM and Exode with cloud computing in mind.

    Cloudium OS is being written in pure ASM. It's designed for speed and ease, having cloud computing in mind. It also is secure (without requiring constant user input like Windows). But, how are we going to do this? Well every os wants/says these kind of things, so to accomplish our goals we follow these simple rules: keep it simple (that's way better then these complex interfaces etc. almost nobody wants), generalize (this makes things easier and more useful without extra complexity) and be inventive (sometimes doing it the classical way just doesn't work). Note: development peace will be temporarily lowered until February the fifth. Please check out our OS and Project site!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    FreeOS/1
    FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use
    Downloads: 4 This Week
    Last Update:
    See Project
  • 19
    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
    Last Update:
    See Project
  • 20
    Matrix0s

    Matrix0s

    New Generation Smart GRID-Decentralized Operating System

    Downloads: 4 This Week
    Last Update:
    See Project
  • 21
    FROST operating system
    NOTICE: This project has been moved to https://github.com/thrimbor/frost The sourceforge project will not get updated anymore! FROST is a free operating system written in FreeBASIC and Assembly with the goal to create a small and stable system. It uses GRUB 2 as its bootloader.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    MineBios

    MineBios

    16 bit real mod minecraft clone running in bios

    Downloads: 3 This Week
    Last Update:
    See Project
  • 23
    BeepOS13
    A systemd less small to medium scale server Operating System based on Devuan 6. All popular packages packed into a live boot environment, just boot, log and go!
    Leader badge
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    StepOS is an open-source operating system that is designed solely to run StepMania, the popular 'dance simulation game', on arcade dedicated cabinets, and is easy to install and maintain. StepOS is based off of the open-source operating system ReactOS.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25
    hackOS ist ein Betriebssystem, was ich in meiner Freizeit programmiere. Der Name hat nichts mit seiner funktionialität zu tun!
    Downloads: 2 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next