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
NuTyX is a very flexible, complete GNU / Linux distribution
Boots into many systems and GRUB2 ones!
Yet another minimal Linux distribution, based on Arch Linux.
Easy, yet powerful, GNU/Linux distribution
Winux Operating System by Linuxfx
Current Release: Calam-Arch-Installer-2026-02 Kernel: 6.18.7
Your concierge creating a Rich experience to Arch
https://github.com/libcgroup/libcgroup
Free operating system for Atari computers, and more.
Testsuite to validate the reliability, robustness, stability of Linux.
The source for the Linux kernel used in Windows Subsystem for Linux 2
Redox is an operating system written in Rust
A beautiful personal server OS for Raspberry Pi or any Linux distro
Runtu is a desktop Linux distribution based on Ubuntu.
Real-Time Event Frameworks based on active objects & state machines