

Kaisen Linux is a distribution for IT professional based on the Debian GNU/Linux distribution. It is a complete operating system whose originality is to provide a set of tools dedicated to system administration and covering all the needs for diagnosing and dealing with faults or...
- Linux Distro
- Free • Open Source
- Linux

GoboLinux is a modular Linux distribution: it organizes the programs in your system in a new, logical way.
- Linux Distro
- Free • Open Source
- Linux

Windows Preinstallation Environment (Windows PE, WinPE) is a lightweight version of Windows used for the deployment of PCs, workstations, and servers, or install, deploy, and repair Windows while it is offline.
- Free • Proprietary
- Windows

Barts PE Builder helps you build a BartPE (Bart Preinstalled Environment) bootable Windows CD-Rom or DVD from the original Windows XP or Windows Server 2003 installation/setup CD, very suitable for PC maintenance tasks.
- Discontinued
- Free • Proprietary
- Windows

openmamba GNU/Linux is a ready-to-use operating system for netbooks, notebooks, desktop and server personal computers.
- Linux Distro
- Free • Open Source
- Linux

OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.
- Firewall
- Free • Open Source
- Linux
- Self-Hosted
QtMoko is debian distribution for Linux based SmartPhones, like Openmoko Freerunner and Goldelico's GTA04 phone. Phone and user interface is based on QT Extendeded formerly known as Qtopia..
- Discontinued
- Operating System
- Free • Open Source
- Linux
- Self-Hosted



Regata OS is an Operating System based on Linux (more precisely on openSUSE) developed for all types of users, however, with a special focus on gamers and content creators.
- Linux Distro
- Free • Open Source
- Linux

With the release of GNOME 3.38.0, we started producing and distributing bootable VM images for debugging and testing features before they hit any distribution repository. We called the images GNOME OS. The name itself is not new, and what it stands for has not changed...
- Linux Distro
- Free • Open Source
- Linux
- GNOME
The CLIP OS project is an open source project maintained by the ANSSI (National Cybersecurity Agency of France) that aims to build a secure, multi-level operating system, based on the Linux kernel and a lot of free and open source software.
- Linux Distro
- Free • Open Source
- Linux
CRUX is a lightweight GNU/Linux distribution for the x86-64 architecture targeted at experienced users. The primary focus of this distribution is keep it simple, which is reflected in a straightforward tar.
- Operating System
- Free • Open Source
- Linux

TOS is an operating system developed by Tom Meyers The idea has been created because of one main reason. Installing arch always took a lot of time. After you installed it and had all software installed you spend an entire day of work.
- Operating System
- Free • Open Source
- Linux
- Arch Linux
- Manjaro Linux

Xinuos OpenServer™ 10 is a 64-bit operating system based on the popular FreeBSD and designed to support business applications within an enterprise environment.
- Operating System
- Free • Open Source
- Mac
- Windows
- Linux
- BSD
- Self-Hosted
AmigaOS is the proprietary native operating system of the Amiga and AmigaOne personal computers, introduced with the launch of the first Amiga, the Amiga 1000, in 1985.
- Operating System
- Paid • Proprietary
- AmigaOS

ravynOS is a new open-source desktop operating system that aims to provide a similar experience and compatibility with macOS on x86-64 systems.
- Operating System
- Free • Open Source
- BSD
- FreeBSD

An open-source OS for exploration, creation, and play. Kano OS is based on the Raspbian OS which itself is based on Debian, a Linux based operating system.
- Operating System
- Free • Open Source
- Linux
- Raspberry Pi

Minoca OS is a general purpose operating system designed specifically for feature-rich embedded devices. It's got all the high-level functionality that you've come to expect from an operating system, but offers it in a fraction of the memory footprint.
- Operating System
- Freemium • Proprietary
- Self-Hosted

OpenSolaris was an open source operating system based on Sun Microsystems Solaris. It was also the name of the project initiated by Sun to build a developer and user community around it.
- Discontinued
- Operating System
- Free • Open Source
- Mac
- Windows
- Linux

Windows Server 2012, codenamed "Windows Server 8", is the sixth release of Windows Server. It is the server version of Windows 8 and succeeds Windows Server 2008 R2. Two pre-release versions, a developer preview and a beta version, were released during development.
- Operating System
- Paid • Proprietary
- Windows

eweOS is a Linux distribution using musl as libc, compiled by clang, adopting dinit as supervision process, shipping pacman as system-wide package manager and busybox instead of coreutils. It also covers a set of alternatives of basic components, such as mimalloc, mold and...
- Linux Distro
- Free • Open Source
- Linux
- Self-Hosted

MidnightBSD is a new BSD-derived operating system developed with desktop users in mind. It includes all the software you'd expect for your daily tasks — email, web browsing, word processing, gaming, and much more.
- Operating System
- Free • Open Source
- Linux
- Self-Hosted

General purposed Web Desktop Operating Platform / OS for Raspberry Pis, Now written in Go! - tobychui/arozos
- Operating System
- Free • Open Source
- Online
- Self-Hosted




























































