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Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..3 weekly downloads
An open source operating system for x86.1 weekly downloads
XSystem Kernel Project - an object-oriented 32-bit protected-mode operating system for IA32-architecture.1 weekly downloads
Gebix is a FreeBSD-based operating system that will be available for both x86 and ARM as of version 0.7 Release Candidate 1. It will sacrifice most of the legacy support to transition to new or recent alternatives.1 weekly downloads
SuperWikia: The Runtime/Realtime Environment for Codesmiths1 weekly downloads
A Small, Reliable, Compact, Object-Oriented, Portable RTOS(Real-time operating system).1 weekly downloads
A new advanced customizable graphic menu multi boot and OS loader based on XOSL project with gujin project features, this project integrate too a mini OS to provide certain customizable specialized maintenance tasks before boot partition/load OS target.
Board Suppord Package for the SIAB-1 project.
CJet eXTreme OS is a new project to develop a cross platform operating system with a native application interface designed to make it easy to develop for several architectures at once.
CPPOS is a operating system developing by C++ and assembly.
Codename Five is an operating system kernel, written as an experiment in learning assembler, written from scratch for x86. It is not (purposely) based on any previous operating system.
The Isis OS Project Is a Controlled Project to Develop An Advanced Modern Operating System!
MatriX OS Kernel is a general-purpose OS kernel, providing flexible deployment with modules. It is designed to be integrated into various runtime environments, e.g. embedded equipments, realtime systems, desktop systems, and server systems.
Maiden-core is a Linux kernel robotics API module, extensible in Erc. The Maiden Project also documents and develops the Maiden architecture for mobile robots, a set of (optional) designs and standards for robots using the Maiden-core API.
Project is a library of windows kernel mode drivers. These drivers intercept requests to file system drivers (FSD), filter and logging actions.
eGIS - (Ege Embedded Operating System) is a portable, configurable, extensible object oriented and real-time embedded operating system microkernel written mostly in C++ language and designed using modern software approaches using design patterns.
open source analogue of IBM OS/2 operating system