Browse free open source Operating System Kernels and projects for Linux below. Use the toggles on the left to filter open source Operating System Kernels by OS, license, language, programming language, and project status.
Blazingly Fast & Customizable Linux distribution
Boots into many systems and GRUB2 ones!
Yet another minimal Linux distribution, based on Arch Linux.
Current Release: Calam-Arch-Installer-2025-11 Kernel: 6.17.6
Testsuite to validate the reliability, robustness, stability of Linux.
Easy, yet powerful, GNU/Linux distribution
Winux Operating System by Linuxfx
Market leading real time kernel for 40+ microcontroller architectures
https://github.com/libcgroup/libcgroup
A beautiful personal server OS for Raspberry Pi or any Linux distro
Creating a Rich experience to ARCH
The source for the Linux kernel used in Windows Subsystem for Linux 2
Runtu is a desktop Linux distribution based on Ubuntu.
OSX, Windows, and Linux Desktop Clients for Rocket.Chat
Free operating system for Atari computers, and more.
Redox is an operating system written in Rust