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!
Current Release: Calam-Arch-Installer-2025-09 Kernel: 6.16.4
Windows Theme Over Linux a.k.a "WINUX" (old Wubuntu)
Yet another minimal Linux distribution, based on Arch Linux.
Linuxfx Operating System
Easy, yet powerful, GNU/Linux distribution
Testsuite to validate the reliability, robustness, stability of Linux.
Market leading real time kernel for 40+ microcontroller architectures
https://github.com/libcgroup/libcgroup
Creating a Rich experience to ARCH
A beautiful personal server OS for Raspberry Pi or any Linux distro
Free operating system for Atari computers, and more.
Runtu is a desktop Linux distribution based on Ubuntu.