OSI-Approved Open Source (234)
- GNU General Public License version 2.0 (122)
- BSD License (36)
- GNU Library or Lesser General Public License version 2.0 (33)
- GNU General Public License version 3.0 (29)
- MIT License (18)
- Apache License V2.0 (6)
- Academic Free License (4)
- Open Software License 3.0 (4)
- Artistic License (3)
- Common Development and Distribution License (3)
- Common Public License 1.0 (3)
- GNU Library or Lesser General Public License version 3.0 (3)
- Eclipse Public License (2)
- Mozilla Public License 1.1 (2)
- Apache Software License (1)
- Other License (16)
- Public Domain (14)
- Grouping and Descriptive Categories (266)
- Linux (260)
- Mac (241)
- Windows (237)
- Android (226)
- Other Operating Systems (27)
- BSD (18)
- Modern (18)
- Audio & Video
- Business & Enterprise
- Home & Education
- Science & Engineering
- Security & Utilities
- System Administration
An alternate and minimalistic boot rom for Lisa(s) emulator(s) (or maybe for real hardware in some future...)
fast single-privilege single-address-space preemptive-multithreading persistent data-centric secure multiuser operating system with safe-language and reconfigurable graphical interface8 weekly downloads
A computer operating system.1 weekly downloads
The Trion Object Oriented Operating system is an OS that is designed to meet the needs for the 21st century, with a kernel written in C++ and modelled in UML, and lots of features. The project is run by a team of OSDev.org community members.1 weekly downloads
The main goal of the neonevo project is to develop a general-purpose, modular real-time operating system for the ia32 architecture (p4+). It's also intended to serve as a platform for new concepts of osdev and user inteface.
The first true nanokernel for x86 that gives a unix prompt on a real bourne shell in respect of all security rules!1 weekly downloads
This was originally an OSdev group, but since as members disbanded, I'm continuing to provide various implemenatitions of software, hardware, operating systems, libraries, and some stuff related to math and physics.1 weekly downloads
An open-source and understandable C/Assembly monolithic kernel. A hobbie operating system ! Every passionate programmer is welcome to contribute.
VeritOS Project is a free operating system, intended to be an educational tool in the workings of x86 hardware.
Ryu/x86 OS is more or less an OS kernel, drivers, and shell for the x86 (386+) architecture. Written mostly in C and assembly, it is targeted at OS enthusiasts who wish to have a simple framework on which to build larger, more functional OSes.1 weekly downloads
Simple and very modular Operating System to be used also in a provided simulator.
Pistrix (lat. Shark) is a Open Source project of Operation System, written on Assembly and C Languages. The OS model is microkernel, because the basic task of the Pistrix is Speed and Small Size.2 weekly downloads
This project has been retired.2 weekly downloads
Aim is to be a DOS operating system clone written in PASCAL and compiled using either Borland Turbo Pascal 5.5 and / or Microsoft Quick Pascal 1.00 and /or Free Pascal
NOIX is a x86 based kernel development project with the goal to come up with an innovative design.Project is divided into two phases, first one dedicated to didactic and research purposes and latter one for implementation of design finalized in phase one
MenuetOS is a fully 32 bit assembly written graphical operating system. Menuet supports 32 bit x86 assembly programming as a faster and smaller system footprint. Menuet has no unix roots and the basic system is meant to be a clean asm based structure.
This SF project provides all the necessary source code to create and update a non-representative democracy, i.e. an isocracy. This is the software part of the melting-vote project.
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.
libosdk stands for operating system development kit, which is simply a library containing low-level architecture dependent assembly procedures you can use to develop your own os without using assembly language or even know about it.1 weekly downloads
A small micro operating system kernel written in C (and partly assembly). Planned features are: software based preemptive multitasking/threading, paging, kernel API, IPC, client/server, security system. The code is designed to be clearly understandable.2 weekly downloads
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.
A FOSS operating system that aims to meet NSA's TPEP TCB A1 evaluation standard while retaining application compatibility at minimal performance overhead.
KittyOS is a small operating system based on Linux. The OS is for USB pendrives and old computers. It uses XFce graphical enviroment.
JuleOS Dynamite is a simple operating system (OS) that will perform very minor and simple operations.1 weekly downloads
Hydrogen Operating System is a portable kernel framework whose components are ELF objects linked to a core providing thread scheduling and memory management in a single addressing space.