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
Yet another minimal Linux distribution, based on Arch Linux.
Boots into many systems and GRUB2 ones!
Windows Theme Over Linux a.k.a "WINUX" (old Wubuntu)
Current Release: Calam-Arch-Installer-2025-09 Kernel: 6.16.4
Linuxfx Operating System
Market leading real time kernel for 40+ microcontroller architectures
Easy, yet powerful, GNU/Linux distribution
Testsuite to validate the reliability, robustness, stability of Linux.
https://github.com/libcgroup/libcgroup
A beautiful personal server OS for Raspberry Pi or any Linux distro
Real-Time Event Frameworks based on active objects & state machines
Creating a Rich experience to ARCH
Runtu is a desktop Linux distribution based on Ubuntu.
Free operating system for Atari computers, and more.