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
Easy, yet powerful, GNU/Linux distribution
Windows Theme Over Linux a.k.a "WINUX" (old Wubuntu)
Testsuite to validate the reliability, robustness, stability of Linux.
Linuxfx Operating System
Market leading real time kernel for 40+ microcontroller architectures
A beautiful personal server OS for Raspberry Pi or any Linux distro
https://github.com/libcgroup/libcgroup
Creating a Rich experience to ARCH
Redox is an operating system written in Rust
Runtu is a desktop Linux distribution based on Ubuntu.
Free operating system for Atari computers, and more.
The source for the Linux kernel used in Windows Subsystem for Linux 2