Open Source C++ Operating Systems
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C++ Operating Systems
View 201 business solutionsBrowse 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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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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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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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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Nitrux
A Linux system for modern computers on an immutable foundation.
A Linux system for modern computers on an immutable foundation. Powered by OpenRC, MauiKit, NX AppHub, and Hyprland. -
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Linuxfx Winux OS
Winux Operating System by Linuxfx
Break free from hardware restrictions and forced upgrades. Winux is the definitive successor for Windows 10 users seeking performance and reliability. Featuring an Intuitive Familiar Interface and Native Compatibility for your essential software. -
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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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infinity-linux
A lightweight Arch Linux based distribution based on Ezarcher
A lightweight Arch Linux-based distribution built for performance, speed, and control. -
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SerenityOS
The Serenity Operating System
SerenityOS is an open source Unix-like operating system project with its own custom kernel, graphical user interface, system libraries, and userland tools. It combines a nostalgic “90s UI aesthetic” with modern system capabilities: a preemptive, multi-threaded kernel, own browsers, network stack, file systems, IPC, security features, and a suite of graphical / developer applications. The project is both a hobbyist OS and a polished engineering sandbox. -
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GXDE OS
Gorgeous eXtended Deepin Environment
GXDE is a desktop environment which is based on DDE15 (Deepin Desktop Environment version 15). You can run the classic desktop on newer Debian-based system than deepin 15.11 If you want to download the daily build image, you can visit https://sourceforge.net/projects/gxde-os/ Discord: https://discord.gg/t5Uf2xYpvA -
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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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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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hhuOS
hhuOS - A small operating system
hhuOS is an educational operating system project developed by students at Heinrich Heine University (HHU) in Düsseldorf, Germany. It is built from scratch in C and Assembly and intended as a teaching tool to help students grasp the foundations of kernel development, memory management, system calls, and multitasking. The project focuses on clarity, modularity, and hands-on experimentation with real OS components, making it suitable for OS development courses or personal exploration. -
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distortos
Object-oriented C++ RTOS for microcontrollers
distortos is a lightweight real-time operating system (RTOS) designed for embedded systems, written in C++11. It targets ARM Cortex-M microcontrollers and is inspired by other embedded RTOSes like FreeRTOS but aims to provide a more modern C++ interface. distortos emphasizes modularity, portability, and ease of use in resource-constrained environments, making it ideal for IoT, robotics, and industrial automation applications. It includes a full-featured scheduler, thread management, and peripheral abstraction layers for common hardware components. -
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The Fresh Project
Simply Awesome.
The official home of Fresh, a One UI-based custom firmware for Samsung devices. -
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ANTIRTOS
Function pointers queues classes library for Arduino
ANTIRTOS is a compact real-time operating system (RTOS) written in ANSI C for microcontrollers and embedded systems. It is designed to be simple, portable, and efficient, making it ideal for resource-constrained environments such as IoT devices, robotics, and educational hardware projects. ANTIRTOS features a basic scheduler, support for cooperative and preemptive multitasking, and offers portability across different CPU architectures with minimal changes. Its simplicity and clarity make it a great starting point for learning real-time systems. -
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ALG
A Fast, Offline, Graphical distribution based on Arch Linux
October 2025 ISOs have been released! 3 new ISOs - PLASMA, GNOME, XFCE have been released. Thank you to all the members in the ALG community for their support. -
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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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StateOS
Free real-time operating system (RTOS) for microcontrollers
StateOS is a compact, open-source real-time operating system designed for embedded systems and written in ANSI C. It supports cooperative and preemptive multitasking, making it ideal for running multiple real-time tasks on microcontrollers. StateOS emphasizes clarity and ease of integration with existing projects and provides a full set of synchronization primitives, timers, and message-passing tools. It's widely used in industrial and academic settings for prototyping and low-level firmware development. -
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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.
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Vinari OS 5.0.0 KRYPTON
Vinari OS 5.0.0 KRYPTON - Debian 13 Trixie based 64-Bit OS
Vinari OS 5.0.0 KRYPTON represents the next stage in our Debian-based evolution, now built on the 64-bit Debian 13 “Trixie” platform. Designed for both everyday users and developers, this release delivers a polished, reliable, and cohesive experience. At its foundation, Vinari OS 5.0.0 KRYPTON features the modern GNOME desktop environment, refined with practical enhancements such as GSConnect, DashToDock, and other usability-focused extensions. Continuing our focus on simplicity and efficiency, Vinari OS 5.0.0 KRYPTON uses the standard ‘deb’ packaging format for smooth system updates. It also includes seamless Flatpak and Flathub integration out of the box, giving users immediate access to a wide, flexible range of software. -
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Xyris
The Xyris Kernel
Xyris is a microkernel-based operating system developed with a focus on modularity, simplicity, and modern code practices. Written in C++, Xyris separates drivers and system services into isolated components using message passing, in line with microkernel philosophy. It’s designed as a research and hobbyist OS, with a clean codebase and early implementations of multitasking, system calls, and filesystem abstractions. Xyris serves as a foundation for further exploration into reliable OS architectures. -
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NebiOS Alternative Mirror (Official)
A unique Ubuntu-based Linux OS with its own desktop and ecosystem.
NebiOS is an Ubuntu LTS-based Linux distribution with a custom desktop environment (NebiDE), built by one person. It combines a unique visual identity (Flat-Skeuomorphism), a widget-first desktop, and its own app format (.napp) into a cohesive platform — not just another reskin. Official mirror — use if the main site has download issues. Main site: https://nebios.org 📌 This mirror page is updated less frequently than the main site. For the latest information, visit https://nebios.org ⚠️ Don't download from unknown sources. ⚠️ Virtual machines: NebiOS X requires GPU acceleration. Most hypervisors (VirtualBox, VMware, GNOME Boxes) will show degraded performance. QEMU with 3D acceleration enabled gives the best VM experience. See FAQ for details. System requirements and pre-installation info: https://nebios.org/download (select your version) Full FAQ: https://nebios.org/support/faq -
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CyanogenMod 13
Android Marshmallow for MSM8930 Samsung Devices
Pure CyanogenMod 13 -
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"µOS++" (micro OS plus plus) is an open source, royalty-free, real-time operating system intended for embedded systems built around ARM Cortex M or AVR devices. It is based on a preemptive scheduler written in C++ (more info in the Wiki).
