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

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  • 1
    android-x86

    android-x86

    A project to bring Android to the x86 platform

    This is a project to port Android open source project to x86 platform, formerly known as "patch hosting for android x86 support". http://www.android-x86.org/
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    Downloads: 18,643 This Week
    Last Update:
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  • 2
    CachyOS

    CachyOS

    Blazingly Fast & Customizable Linux distribution

    CachyOS - Arch Linux Based Distribution With Heavy Optimizations & Multi-Architectures For Ultimate Desktop Experience Filesystems: - btrfs - zfs - ext4 - xfs - f2fs Our installer will auto detect which micro architecture your machine got, if x86-64-v3 or x86-64-v4 is detected it will automatically use the optimized packages, which is around a 10 % performance improvement. Desktop Environments: - KDE - CuteFish - i3 - Gnome - Openbox - Wayfire - Xfce - LXQT - bspwm All packages are compiled with Full LTO and other optimization flags. Depending on the march your cpu have it is compiled against x86-64, x86-64-v3 or x86-64-v4. For the Desktop Environment we provide basic theming. In CachyOS-Hello can be also security related packages enabled, like: DNScrypt-proxy Firejail apparmor Security and Performance! https://discord.gg/qJqj94uFwE https://t.me/+zCzPX4cAFjk1MTY
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    Downloads: 4,942 This Week
    Last Update:
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  • 3
    Linuxfx Operating System

    Linuxfx Operating System

    Linuxfx Operating System

    Linuxfx is an Ubuntu-based operating system that contains a powerful set of tools and an amazing look and feel. It has compatibility with Windows apps through Wine and also runs Android apps. It's super stable, solid as a rock and very secure. It also does not need TPM or any other requirement for its operation and is compatible with any computer that has 2 cores and 3GB of RAM memory.
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    Downloads: 3,778 This Week
    Last Update:
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  • 4
    Arrow OS

    Arrow OS

    It is an AOSP based project with an aim of keeping things clean!

    ArrowOS is an AOSP based open source project started with the aim of keeping things simple, clean and neat, both for the Android system and users. We understand the pain of unnecessary and sometimes rarely used mods/features being shipped with custom roms nowadays which may end up causing battery drains and/or memory leaks. This is being strictly avoided on our side keeping everything to a bare minimum, delivering the stable performance all the time without destroying the AOSP interface. With users getting more used to tweaks and features, we added just the right stuff that will be actually USEFUL at the end of the day.
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    Downloads: 1,075 This Week
    Last Update:
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  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

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  • 5
    RebornOS

    RebornOS

    Made For You - Made With You

    RebornOS is an Arch Linux based distribution whose goal is to make Arch Linux more approachable to beginners. We stick close to Arch Linux, offer choices without much bloat, and we provide quite a bit more support and handholding than typical distributions so that beginners don't feel overwhelmed.
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    Downloads: 448 This Week
    Last Update:
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  • 6
    Lingmo OS
    Lingmo GNU/Linux (Lingmo OS) is a desktop based Linux operating system developed based on the open-source Debian kernel and adapted to the amd64 architecture. It has a beautiful desktop environment, software that is compatible with the desktop environment, and a unified UI style. The goal of Lingmo GNU/Linux is to provide users with a luxurious and practical desktop environment as well as a smooth experience on low performance hardware.
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    Downloads: 582 This Week
    Last Update:
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  • 7

    berryboot

    Berryboot -- Boot menu / OS installer for ARM devices

    Berryboot is a simple operating system installer and boot selection screen for ARM devices such as the Raspberry Pi and Cubieboard. It allows you to put multiple Linux distribution on a single SD card.
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    Downloads: 241 This Week
    Last Update:
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  • 8
    Leader badge
    Downloads: 191 This Week
    Last Update:
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  • 9
    ALG

    ALG

    A Fast, Offline, Graphical Installer for Arch Linux

    We will follow a quarterly release schedule. This means there will be 4 releases annually. The release for Q1 should be in March. Thank you to all the members in the ALG community for their support.
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    Downloads: 511 This Week
    Last Update:
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  • MongoDB 8.0 on Atlas | Run anywhere Icon
    MongoDB 8.0 on Atlas | Run anywhere

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  • 10
    Berry Linux

    Berry Linux

    A lightweight flavor of Linux based on Fedora

    Berry Linux is a bootable CD Linux, automatic hardware detection. Berry Linux can be used as a Linux demo, educational CD, rescue system. It is not necessary to install anything on a hard disk.
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    Downloads: 94 This Week
    Last Update:
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  • 11
    The Fresh Project

    The Fresh Project

    Love your phone again.

    The official home of Fresh, a One UI-based custom firmware for Samsung devices.
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    Downloads: 110 This Week
    Last Update:
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  • 12
    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: 17 This Week
    Last Update:
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  • 13
    DracOS GNU/Linux Remastered
    What is DracOS GNU/Linux Remastered ? DracOS GNU/Linux Remastered ( https://github.com/dracos-linux ) is the Linux operating system from Indonesia , open source is built based on Debian live project under the protection of the GNU General Public License v3.0. This operating system is one variant of Linux distributions, which is used to perform security testing (penetration testing). Dracos linux in Arm by hundreds hydraulic pentest, forensics and reverse engineering. Use a GUI-based tools-tools the software using the CLI (command line interface) and GUI (graphical user interface) to perform its operations. Now Dracos currently already up to version 3.1.5 with the code name "KUNTILANAK WITH REMASTERED".
    Downloads: 26 This Week
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  • 14
    Vinari OS 4.0.0 HELIUM

    Vinari OS 4.0.0 HELIUM

    Vinari OS 4.0.0 HELIUM - Debian 12 Bookworm based 64-Bit OS

    Vinari OS 4.0.0 HELIUM marks the evolution of a Debian-based operating system, now embracing the 64-bit Debian 12 platform. This release is crafted with both everyday users and developers in mind, offering a seamless experience. At its core, Vinari OS 4.0.0 HELIUM showcases the intuitive GNOME desktop environment, enhanced with practical extensions such as GSConnect and DashToDock, among others. Our commitment to simplicity and convenience shines through, as Vinari OS 4.0.0 HELIUM adopts the 'deb' packaging format, ensuring effortless updates. Additionally, right out of the box, it seamlessly integrates with Flatpak and the Flathub repository, empowering users with a versatile software ecosystem.
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    Downloads: 47 This Week
    Last Update:
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  • 15
    BEE free TECH

    BEE free TECH

    [ Beautiful, Effective, Efficient, Freedom, Technology ]

    BEE free 20.04 is a community-driven Linux distribution based on Ubuntu 20.04 .
    Downloads: 10 This Week
    Last Update:
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  • 16
    Genode

    Genode

    Genode OS Framework

    Genode is a capability-based, component-oriented operating system framework focused on building secure, modular, and flexible operating systems. Unlike monolithic or microkernel-only designs, Genode allows developers to construct OSes from fine-grained components that communicate through well-defined interfaces. It supports multiple kernels including NOVA, seL4, and Fiasco.OC, and has been used to build everything from microhypervisors to full desktops. Genode places strong emphasis on security, fault isolation, and formal verifiability, making it ideal for critical systems and research environments.
    Downloads: 1 This Week
    Last Update:
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  • 17
    pranaOS

    pranaOS

    Smart Operating System for x86, ARM, Mobile, Watch

    pranaOS is a hobby operating system built from scratch in C and C++, intended to teach and demonstrate operating system fundamentals such as process control, memory management, and kernel bootstrapping. It is designed for the x86_64 architecture and features a custom shell, task scheduler, and keyboard driver. With a strong focus on education, pranaOS serves as a base for experimenting with kernel development and learning how different subsystems interact in a functioning OS.
    Downloads: 1 This Week
    Last Update:
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  • 18
    DreamStudio by Volocian Studios
    Volocian believes first and foremost that financial status shouldn’t be a barrier to entry in multimedia content creation. Whether you want to design a product or website, record a band, remix a song, or produce a feature length movie with professional post production graphics and effects, Volocian™ wants to help, even if you’re using borrowed hardware with no previous experience. We provide affordable products and services for any budget, including cost-free solutions for education and demo purposes, while everything we do is designed with ease of use and flexibility in mind, to suit everyone from novice hobbyists to expert professionals. Wherever possible, Volocian™ relies on free, open source, and cross-platform software to prevent vendor lock-in, planned obsolescence, and software as a service licensing. While we remain pragmatic about the use of proprietary software, as we’re aware of the feature limitations of some open source solutions, free solutions are preferred.
    Downloads: 10 This Week
    Last Update:
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  • 19
    Life

    Life

    Linux for Education based on Ubuntu MATE

    Li-f-e: Linux for Education. A free Linux distribution for education.
    Leader badge
    Downloads: 24 This Week
    Last Update:
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  • 20
    CyanogenMod 13

    CyanogenMod 13

    Android Marshmallow for MSM8930 Samsung Devices

    Pure CyanogenMod 13
    Downloads: 20 This Week
    Last Update:
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  • 21
    Nitrux

    Nitrux

    Simple, quick and responsive. That's Nitrux.

    Nitrux is a Linux desktop distribution based on Debian, using the Calamares installer and featuring the NX Desktop on KDE Plasma 5. It prioritizes simplicity and uses OpenRC instead of systemd. Nitrux leverages AppImages for software management and includes Maui Apps, created with the MauiKit UI framework. The distribution is consistently updated with the latest Debian base and the Liquorix kernel, offering performance enhancements like flexible inode placement, zstd compression, and checksum verification. Nitrux focuses on high performance with features such as an improved garbage collector, asynchronous I/O, and enabled zswap. It avoids synchronous updates to access times and manages VFS cache reclamation effectively. Nitrux is an immutable Linux distribution, employing overlayroot to maintain the integrity of the root directory, which remains unmodifiable by default. This immutability enhances system security, and resistance to tampering, and simplifies maintenance.
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    Downloads: 5 This Week
    Last Update:
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  • 22
    NebiOS Alternative Mirror (Official)

    NebiOS Alternative Mirror (Official)

    An Ubuntu Linux-based OS that aims to end user.

    NebiOS is Ubuntu-based secure, privacy-focused universal OS for daily life, creativity, gaming & more. Official mirror - use if main site has download issues. Main site: nebios.org ⚠️ DON'T DOWNLOAD FROM UNKNOWN SOURCES! === 🚀 NebiOS X (next-gen) is here! Currently available as public beta in both SourceForge (here in "nextgen" folder) and nebios.org (under construction). Early release due to dev challenges - better hardware recommended. === 📋 NebiOS 3 Requirements (Stable - Final X11 version): - 64-bit dual-core x86 (Intel/AMD) or ARM, 2GB RAM, 24GB storage - OpenGL 3 GPU (something like Intel HD 4000 or better), Vulkan 1.3 for gaming - Works on 2012+ PCs. Pi 4: 720p 30fps (due hardware limits), Pi 5 not supported (NebiOS X will support) VM Support: Most software works (VirtualBox, VMware, QEMU). NebiOS X needs properly Wayland-supported 3D acceleration (only VMware supported in currently). ⚠️ NebiOS 2 support ends when X goes final (stable)
    Downloads: 10 This Week
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  • 23
    BackSlash Linux

    BackSlash Linux

    Linux based operating system with OOBE - comprises of FOSS.

    BackSlash Linux will no longer receive updates. BackSlash Linux is going to discontinued as of Sept 15, 2021 for a good reason. There is an article on the main page of https://www.backslashlinux.com which will explain the reason of the discontinuation of the project and future plans. I thank you all for the love and support.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 24
    Network Simulator (fork CORE - Live USB)

    Network Simulator (fork CORE - Live USB)

    Live DVD with CORE network simulator

    The Common Open Research Emulator (CORE) is a tool for emulating networks on one or more machines. You can connect these emulated networks to live networks. CORE consists of a GUI for drawing topologies of lightweight virtual machines, and Python modules for scripting network emulation.
    Downloads: 9 This Week
    Last Update:
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  • 25
    KaNaPi

    KaNaPi

    Educational Linux Distribution

    Main goals: * Prepare operating system based on Linux kernel and free software for use at home from scratch by building sources. Binary packages/images are also available. * Each package is installed in separate directory, so you can use different versions of applications and libraries by design. * There is only one user 'kanapi' with root permissions, so you don't have to login, remember passwords, etc. * Simple configuration * Automatic compilation.
    Downloads: 16 This Week
    Last Update:
    See Project
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