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Sites where Operating System is a core feature are shown first, marked with a Core badge.
Discover Windows 11—an operating system with AI-powered features, security, accessibility, and a wide range of apps for work, creativity, and gaming.
Explore Windows 11—an operating system with built-in AI, productivity tools, accessibility features, and seamless PC integration for work and play.
Explore Android, Google’s mobile operating system, to discover devices, features, built-in AI, and easy ways to stay connected and get things done.
Ubuntu offers a modern, open source Linux operating system for desktops, servers, cloud, and IoT, designed for enterprise and developer needs.
RIOT Summit 2025 brings together IoT enthusiasts for talks, tutorials, demos, and a hackathon focused on the open-source RIOT operating system.
Download official Debian installation images for USB, CD, or DVD to set up the Debian operating system on your computer with ease.
Discover Fedora Spins—customized Fedora Linux editions with different desktop environments. Download versions tailored to your workflow or preference.
CentOS offers a free, open-source Linux distribution that closely follows Red Hat Enterprise Linux, with strong community support and active development.
FreeBSD is a free, open source operating system for servers, desktops, and embedded devices, known for reliability, security, and advanced features.
Get official Microsoft software updates, drivers, and tools for Windows, Office, Xbox, and more, all in one place for safe and easy downloading.
openSUSE offers a powerful Linux operating system for desktops and servers, with tools for sysadmins, developers, and users who want the latest software.
Explore and contribute to the Android Open Source Project, where you can build, test, and customize the Android operating system for your devices.
Gentoo.org is the home of Gentoo Linux, a flexible, source-based operating system with resources, downloads, documentation, and a supportive community.
OpenWrt is a customizable Linux-based operating system for embedded devices, offering a writable filesystem and package management for full device control.
Alpine Linux offers a lightweight, secure Linux operating system designed for simplicity and efficiency. Ideal for servers, containers, and developers.