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

  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Try Free
  • 1
    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: 2 This Week
    Last Update:
    See Project
  • 2
    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: 2 This Week
    Last Update:
    See Project
  • 3
    WinDS

    WinDS

    Windows XP reimplemented on Nintendo DS

    WinDS is a Reimplementation of the OS Windows(R) XP(R) on the Platform Nintendo DS. Since i started coding Apps for the NDS, my goal was to write a program, called WinDS, which does (nearly) the same as the real appy by Microsoft. In contrast to other little NDS-Operating Systems, just like Woopsi etc. you can code your own Application in Lua for WinDS: just copy the Code onto the FAT-Disk and execute it from within WinDS! This is what makes WinDS so unique. The New Beta 0.95 is out, it features - 52 Classes that are already available within Lua - 25 different types of user interface classes - 8 different predefined dialogs which makes it the perfect GUI sandbox for DS. PS: More time without update means: next update will have even more improvements, as i am still developing ;)
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    Infortus is a hobby OS. It's written in C and Assembly.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Cut Data Warehouse Costs by 54% Icon
    Cut Data Warehouse Costs by 54%

    Easily migrate from Snowflake, Redshift, or Databricks with free tools.

    BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
    Try Free
  • 5

    Lucifer's Linux

    A Linux distribution based on Arch Linux meant for occultists

    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Sakura is a Knowledge Navigator and User Interface for UNIX, which implements HyperMedia and its own windowing and packing system, both in the main program and in an extensive API for Tcl and other languages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    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: 1 This Week
    Last Update:
    See Project
  • 8
    A modification of Chromium OS with more apps, drivers and artwork.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    ElymOs

    ElymOs

    Linux OS from ubuntu, customisable for everyone, social and media

    Ubuntu based GNU/Linux system, use Gnome Shell. Easy for learn Linux and programming. All software of everyday use. Wine and Virtual Machine for use other OS.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 10
    Enough lame computing! The project for re-desiging and re-writing the computer world, based on old & new ideas that have never been implemented in a practical way. Research in form of discussion is in the public forum at this sourceforge project page.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    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: 0 This Week
    Last Update:
    See Project
  • 12
    Genis is an OS written in managed code (C#). Its purpose is to be a usable, but powerful text based operating system.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13

    Gentoo CNC

    Solution for changing your device into full-feature CNC controller

    GentooCNC is a Gentoo based Linux didtribution designed to support hard real-time control of equipment such as industrial machine tools, 3D printers, laser cutters, robots, and coordinate measuring machines using LinuxCNC. GentooCNC is designed to target embedded platforms such as the BeagleBone, Mini2440, as well as conventional desktop platforms.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    A modular linux distribution designed to provide 100% support to AMD-based laptops and notebooks, with a particular focus on the Averatec line of products.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    MDF is microkernel operating system. Module architecture minimalistic design.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19

    MIS630team_4

    Hotel Searching Database system

    Mission Statement: The purpose of our website Hotel searching database system is to maintain data that is generated and used to help the hotel-seekers to find proper hotels for foothold and provide customers all of the necessary information such as the services and the landmarks around hotel to make decisions. Project Scope: The users will be the people who want to find the proper hotel. The hotel-seekers will be using our website to find the hotels at the certain location and selected price. The website not only provide the information about the hotel but also provide information about the landmarks around the hotel. Whether the users are the travelers or the people just want to find the place to stay, our website will provide enough information to the users to make decisions. If the users want to book the hotel, our website also provide the hotel's official site for users.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    The OS561 operating system based around FORTH/Java. The OS is to run on a VHDL chip OpenHardware design called the Minon, but could become available for other platforms. The unique point of the design is a revolutionary data compression technology.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Connector to Primavera P6 Project Manager database. Analog Primavera API.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    RelaxOS - это 64 разрядная UEFI операционная система основанная на JIT компиляции программ. Система будет иметь графический интерфейс. Окружение для программ будет похоже на .NET но без сборки мусора.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23

    SBCD

    partitioning backup recovery and all kind of boot loaders

    partitioning backup recovery and all kind of boot loaders
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    SXMD

    SXMD

    MultiDistribution with Diagnostics, Recovery, Backup, Cleaning.. tools

    The SXMD (" like Security-X MultiDistribution ") use syslinux, grub4dos and others bootloaders to recover a crashed boot or run many GNU / Linux utilities. The first category is "Antivirus" with editors like Antivir, AVG, Comodo, DrWeb, FSecure, Kaspersky, Panda, VBA ... The second is composed by GNU/Linux's Distro: DSL, CorePlus (+Qemu Starter), Slacko, Slax Custom, Slitaz & XPuD ... After, you can find very good Recovery and Partitioning tools : Redo Backup, Parted Magic, MiniTool Partition Wizard, Paragon, PING, OSF and ActiveBootDisk ... SXMD also gathering a XP PE : Hiren'sBoot with DOS tools ("ubcd"), a Portable Suite and many boot priorities or possibilities. Size : +/- 3Gb Available : USB / DVD version ("coming soon") WebSite : http://www.security-x.fr/tools/SXMD ("under construct")
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    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: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • Next
MongoDB Logo MongoDB