Showing 120 open source projects for "custom os"

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  • 1
    Glow OS

    Glow OS

    System Analysis Software

    Glow is an educational, hobbyist operating system written in C and Assembly, developed to help learners understand the internals of OS design and kernel development. Targeting x86_64 systems, Glow features its own kernel, bootloader, and minimal userland. With clear code structure and a simple design, it serves as a playground for experimenting with low-level systems programming, boot sequences, interrupt handling, and basic UI components like shells and text rendering.
    Downloads: 14 This Week
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  • 2
    Pony OS

    Pony OS

    My Little Unix: Kernels are Magic

    ponyos is a lightweight, UNIX-like operating system developed as a personal hobby project by the creator of ToaruOS. It features a monolithic kernel written in C and aims for a POSIX-compliant environment with a built-from-scratch userland. ponyos includes a graphical interface, dynamic linker, shared libraries, and a package manager. It’s designed for fun, experimentation, and as a platform to learn and play with operating system internals, with surprisingly advanced features given its...
    Downloads: 11 This Week
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  • 3
    Tock OS

    Tock OS

    A secure embedded operating system for microcontrollers

    Tock is a secure, embedded operating system designed for microcontrollers and low-power hardware platforms. Written in Rust, it uses a novel kernel architecture where the OS runs a minimal trusted core and all userland code, including device drivers, is sandboxed and isolated. Tock is ideal for IoT devices, wearables, and embedded research projects where reliability and safety are critical. Its capability-based security model and preemptive multitasking allow developers to safely run...
    Downloads: 1 This Week
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  • 4
    AmogOS

    AmogOS

    Among-us themed OS. As seen on Reddit and Youtube

    A parody OS inspired by Among Us. (pronounced A-mog-O-S).
    Downloads: 7 This Week
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  • 5
    openFyde

    openFyde

    openFyde supported hardware "x86 PC with Intel HD graphics

    overlay-amd64-openfyde is the official overlay repository for the amd64 (x86_64) build of openFyde, a Chromium OS-based distribution tailored for developers, power users, and alternative devices outside of Google's supported ChromeOS hardware. openFyde offers a fast, secure, and web-centric desktop experience with support for Linux apps, Android containers, and cloud integration. This overlay includes the custom configurations and firmware patches necessary to optimize openFyde for generic x86_64 devices such as laptops and desktops.
    Downloads: 103 This Week
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  • 6
    k23

    k23

    Experimental WASM Microkernel Operating System

    k23 is a microkernel-based operating system project written in Zig, an emerging systems programming language focused on safety, simplicity, and performance. k23 explores the design of modern OS features like message-passing, memory protection, and modular service construction using Zig’s powerful low-level capabilities. It is an experimental and educational project intended to show how Zig can be used for robust, readable systems programming while enabling contributors to rethink traditional...
    Downloads: 1 This Week
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  • 7
    Raspberry Pi Imager

    Raspberry Pi Imager

    Tool for creating bootable media for Raspberry Pi devices

    Raspberry Pi Imager is an official utility designed to simplify the process of creating bootable storage media for Raspberry Pi devices. It provides a user-friendly graphical interface that allows users to select an operating system, download it if necessary, and write it directly to an SD card or USB drive. The tool supports Windows, macOS, and Linux, making it accessible to a broad range of users from beginners to advanced developers. It also includes customization options such as...
    Downloads: 70 This Week
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  • 8
    iDeal OS

    iDeal OS

    The alternative OS, secure by design.

    Welcome to iDeal OS. iDeal OS is a computer operating system, a custom "respin" based on the the powerful distributions of MX Linux and Debian, with the best privacy and security settings enabled by default. The main goals of iDeal OS are privacy and security: you can surf, shop, trade and bank online with complete peace of mind, without annoying ads, tracking, logging, bugs, viruses or unwanted disclosure of personal information.
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    Downloads: 2,564 This Week
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  • 9
    AnduinOS

    AnduinOS

    AnduinOS is a custom Ubuntu-based Linux distribution

    AnduinOS is a personal/experimental operating system–style project and collection of components built to explore how a desktop-like environment and tooling could be organized under one coherent repo. It combines configuration, scripts, and UI elements to form a workstation experience that is more opinionated and automation-friendly than a vanilla setup. The project leans toward developer productivity: quick access to tools, reproducible configuration, and a unified place to evolve the...
    Downloads: 36 This Week
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  • 10
    hhuOS

    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.
    Downloads: 4 This Week
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  • 11
    Mist-OS [Pacman]

    Mist-OS [Pacman]

    A Custom ROM project for Nothing Phone 2a (Pacman) - MistOS

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    Downloads: 133 This Week
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  • 12
    WANIX

    WANIX

    A virtual environment kit for the local-first web

    wanix is a hobbyist Unix-like operating system written from scratch in C, aiming to implement core features of a traditional OS in an educational and modular way. The project walks through kernel development starting from bootloading, memory management, system calls, and eventually to user programs. With support for x86_64 and simple tools like a shell and basic file I/O, wanix serves as both a learning platform and a launching point for more advanced kernel features.
    Downloads: 4 This Week
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  • 13
    Xray_OS

    Xray_OS

    Xray_OS is Angel's own Linux distro.

    Xray_OS has custom tools in development, and has two pre-configured desktop environments available KDE Plasma and XFCE. SystemD now will include Age verification and probably Arch devs will go crazy and replace normal pacman with a rusty one.. so.. one of the goals for the next year at least is.. patch components that are Systemd dependent with LiberatedD, and Fork the current pacman before they ruin it with rust, Rust is my second favorite language, but I'm definitely against this idea...
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    Downloads: 563 This Week
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  • 14
    Puter

    Puter

    The Internet OS! Free, Open-Source, and Self-Hostable

    Puter is a browser-based personal operating system and file explorer built entirely with web technologies. It mimics the experience of a traditional desktop OS, allowing users to manage files, launch apps, and interact with a graphical interface—all within a web browser. The project is designed to be both functional and nostalgic, combining the aesthetic of retro operating systems with modern development tools like React and Tailwind CSS. Puter offers a self-hostable, customizable...
    Downloads: 10 This Week
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  • 15
    GameMode

    GameMode

    Optimise Linux system performance on demand

    GameMode is a daemon/lib combo for Linux that allows games to request a set of optimizations be temporarily applied to the host OS and/or a game process. GameMode was designed primarily as a stop-gap solution to problems with the Intel and AMD CPU power save or on-demand governors but is now host to a range of optimization features and configurations.
    Downloads: 8 This Week
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  • 16
    SkiffOS

    SkiffOS

    Any Linux distribution, anywhere

    SkiffOS is a lightweight, containerized operating system optimized for embedded systems, edge devices, and single-board computers like the Raspberry Pi. It integrates Buildroot and Docker to create minimal, reproducible OS images that boot directly into a containerized user environment. SkiffOS supports running full Linux distros or custom applications in containers, providing both performance and modularity. It’s ideal for IoT deployments, secure kiosk systems, and remote-controlled appliances.
    Downloads: 1 This Week
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  • 17
    Realm OS

    Realm OS

    RealmOS: High-performance MX Linux KDE workstation for power users.

    Project Title: RealmOS: Official Universe Edition Description: RealmOS is a high-performance Linux distribution built for developers, power users, and students. Based on the rock-solid MX Linux (AHS) and featuring the KDE Plasma desktop environment, RealmOS combines stability with a futuristic aesthetic. Why choose RealmOS? The Universe Theme: Pre-configured with the "Universe Neon" look, custom icons, and the classic "Wobbly Windows" effect. Performance First: Optimized...
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    Downloads: 34 This Week
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  • 18
    SerenityOS

    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.
    Downloads: 39 This Week
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  • 19
    StartOS

    StartOS

    Linux server OS optimized for self-hosting

    StartOS is a sovereign, self-hosted operating system built by Start9 Labs to empower individuals with digital independence. Designed to run on personal servers, it provides a privacy-first interface for installing, managing, and running decentralized applications without needing technical expertise. StartOS includes services like Bitcoin nodes, messaging platforms, file hosting, and password managers, all running locally and without third-party control. With a user-friendly UI and strong...
    Downloads: 11 This Week
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  • 20
    OpenFang

    OpenFang

    Open-source Agent Operating System

    ...The system is positioned as a foundation for building advanced AI tooling, particularly in environments that require tight integration with GPU workflows and modern AI pipelines. OpenFang emphasizes modularity and extensibility so developers can plug in custom agents, tools, or execution backends. Overall, the project represents an emerging class of “agent OS” platforms that treat AI agents as first-class computational actors rather than isolated scripts.
    Downloads: 13 This Week
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  • 21
    CEmu emulator

    CEmu emulator

    Third-party TI-84 Plus CE / TI-83 Premium CE emulator

    Developer-oriented emulator of the eZ80-based TI-84 Plus CE / TI-83 Premium CE calculators. CEmu is a third-party TI-84 Plus CE / TI-83 Premium CE calculator emulator, focused on developer features. The core is programmed in C and the GUI in C++ with Qt, for performance and portability reasons. CEmu works natively on Windows, macOS, and Linux! Easy setup - get running by doing a one-time-only connection of your calculator! Accurate and fast emulation. Customizable speed/throttling. Resizable...
    Downloads: 17 This Week
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  • 22
    GaryOS

    GaryOS

    GaryOS is an entire GNU/Linux system in a single bootable file

    GaryOS is an entire GNU/Linux system in a single bootable file. It is also a Builder system to create and package Gentoo installations. Builder creates custom root filesystems that GaryOS can load into memory in place of its own. GaryOS can build new or updated versions of itself from within itself. Primary uses: * System rescue and recovery * Anonymous and secure workstation * GNU/Linux learning environment * Installation of Gentoo Unique advantages: * Source-based...
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    Downloads: 85 This Week
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  • 23
    Aura Operating System

    Aura Operating System

    AuraOS, the Franco-English Operating System developed in C#

    Aura Operating System is a GUI-based, object-oriented operating system written in C#. It is designed to showcase how high-level languages like C# can be used to create low-level systems such as kernels, user interfaces, and file systems. Aura features a colorful, windowed graphical desktop environment with built-in applications, all running on a custom kernel built from scratch. It is not based on Linux or Windows, but rather developed as an independent system with its own structure and drivers.
    Downloads: 14 This Week
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  • 24
    Enchantment OS

    Enchantment OS

    Linux simplified. A consumer-friendly distro, based on Debian Stable

    Version 24 Beta release for testing and evaluation. Enchantment OS is a Linux distribution, tailored for ease of use, reliability and performance. It makes stable, secure Linux software goodness more accessible to nongeeky consumers and small business owners. Based on interviews and user trials with more than 200 real-world consumers fom California to Florida, Enchantment OS has more of the features and apps that consumers need and less of the shiny nerdy stuff that they don't....
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    Downloads: 3 This Week
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  • 25
    Moby

    Moby

    Project for the container ecosystem to assemble containe-based systems

    ...Moby is an open framework created by Docker to assemble specialized container systems without reinventing the wheel. It provides a “lego set” of dozens of standard components and a framework for assembling them into custom platforms. At the core of Moby is a framework to assemble specialized container systems which provides a library of containerized components for all vital aspects of a container system, OS, container runtime, orchestration, infrastructure management, networking, storage, security, build, image distribution, etc. Tools to assemble the components into runnable artifacts for a variety of platforms and architectures: bare metal (both x86 and Arm); executables for Linux, Mac and Windows; VM images for popular cloud and virtualization providers.
    Downloads: 6 This Week
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