Operating System
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Sites where Operating System is a core feature are shown first, marked with a Core badge.
Learn how to build your own operating system from scratch with guides, resources, and a community for aspiring OS developers.
Window Maker is an X11 window manager that brings the classic NeXTSTEP look and feel to Unix desktops, offering a clean, elegant user interface.
QNX offers secure, high-performance embedded software, RTOS, and tools for powering vehicles, medical devices, and industrial systems around the world.
postmarketOS is a free, open-source Linux distribution for phones and mobile devices, helping you extend device life and gain full control over your hardware.
Legacy Update helps you restore online access and install updates on old Windows PCs, supporting versions like XP, Vista, 7, and 8.1 after official support ends.
checkra1n lets you jailbreak iPhone 5s to iPhone X on iOS 12.0 and above, giving you more control and customization options for your device.
Sailfish OS is a privacy-focused, European mobile operating system that supports Android apps and offers customization for users and businesses.
Pisi GNU/Linux is a user-friendly, Turkish-focused Linux distribution designed to make installing, configuring, and using your computer simple and accessible.
OpenBSD Jumpstart offers concise slides to help new users quickly learn the basics of OpenBSD, making it easy to get started with this UNIX-like system.
CAINE is a Linux-based live distribution for digital forensics, offering a full suite of investigative tools with an easy-to-use graphical interface.
Explore IsabellaOS Stage 1 BootLoader, a resource for learning about custom operating system development and bootloader design for advanced users.
GalliumOS is a lightweight Linux operating system designed to run fast and smooth on ChromeOS devices, offering improved performance and responsiveness.
Parabola GNU/Linux-libre offers a fully free, community-driven operating system focused on user freedom, simplicity, and hackability.
A friendly community forum where users and developers connect, ask questions, and share ideas about the Haiku operating system.
XFree86 provides a free, open-source implementation of the X Window System, enabling graphical user interfaces on Unix-like operating systems.
Libreboot offers free and open source BIOS/UEFI boot firmware for Linux and BSD systems, helping you start your computer securely and with more control.
Hyperion Entertainment supports AmigaOS with updates, downloads, and news for classic Amiga fans and users interested in Amiga operating system software.
A collaborative wiki documenting postmarketOS, an open-source operating system based on Alpine Linux for smartphones and mobile devices.
Funtoo is a community-driven Linux project offering a read-only wiki with guides, downloads, and resources for Linux enthusiasts and hobbyists.