An open API service indexing awesome lists of open source software.

Awesome-UNIX

All the UNIX and UNIX-Like: Linux, BSD, macOS, Illumos, 9front, and more.
https://github.com/sirredbeard/Awesome-UNIX

Last synced: 7 days ago
JSON representation

  • Certified UNIX Operating Systems

    • Disambiguation: AT&T UNIX®, UNIX® Certification, UNIX®-Like, and Linux®

      • AIX® - AIX is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms.
      • UnixWare® - UnixWare is a Unix operating system made by Xinuos from the assets of SCO Group.
      • UnixWare® - UnixWare is a Unix operating system made by Xinuos from the assets of SCO Group.
      • OpenServer® - OpenServer is a Unix operating system made by Xinuos from the assets of SCO Group.
      • z/OS® - IBM z/OS is an operating system for IBM zSystems mainframes.
      • AIX® - AIX is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms.
      • HP-UX® - HP-UX is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V.
  • AT&T UNIX®-Derived Operating Systems

    • Disambiguation: AT&T UNIX®, UNIX® Certification, UNIX®-Like, and Linux®

      • FuguIta - FuguIta is an OpenBSD live CD featuring portable workplace, low hardware requirements, additional software, and partial support for Japanese.
      • MirBSD - Fork of OpenBSD that tracks OpenBSD base with a number of enhancements and modifications.
      • DragonflyBSD - DragonFly BSD is a free and open source Unix-like operating system created as a fork of FreeBSD 4.8.
      • HardendedBSD - HardenedBSD is a security-enhanced fork of FreeBSD. The HardenedBSD Project implements a number of exploit mitigation and security technologies on top of FreeBSD.
      • XigmaNAS - XigmaNAS (formerly known as NAS4Free) is an embedded Open Source NAS (Network-Attached Storage) distribution based on the latest FreeBSD releases.
      • DragonflyBSD - DragonFly BSD is a free and open source Unix-like operating system created as a fork of FreeBSD 4.8.
      • MirBSD - Fork of OpenBSD that tracks OpenBSD base with a number of enhancements and modifications.
      • Open Server 10® - Xinuos® OpenServer 10® commercial operating system based on FreeBSD 10 and designed to support business applications. 💰
      • helloSystem - helloSystem is a FreeBSD-based desktop system for creators with a focus on simplicity, elegance, and usability. Its design follows the “Less, but better” philosophy. It is intended as a system for “mere mortals”, welcoming to switchers from the Mac.
      • TrueNAS CORE® - TrueNAS CORE (formerly known as FreeNAS®) is a free and open-source network-attached storage (NAS) software based on FreeBSD and the OpenZFS file system.
      • FuguIta - FuguIta is an OpenBSD live CD featuring portable workplace, low hardware requirements, additional software, and partial support for Japanese.
      • NetBSD® - NetBSD is a free and open source Unix-like operating system that descends from Berkeley Software Distribution (BSD), a Research Unix derivative developed at the University of California, Berkeley known for its wideranging platform support.
      • GhostBSD - GhostBSD is a Unix®-like operating system based on TrueOS with [MATE](https://mate-desktop.org/) as its default desktop environment.
      • MidnightBSD - MidnightBSD is a free Unix®-like, desktop-oriented operating system based on FreeBSD 6.1 that borrows heavily from the NeXTSTEP graphical user interface.
      • XigmaNAS - XigmaNAS (formerly known as NAS4Free) is an embedded Open Source NAS (Network-Attached Storage) distribution based on the latest FreeBSD releases.
  • Linux

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Slackware - Slackware is a Linux distribution created by Patrick Volkerding in 1993. Slackware aims for design stability and simplicity and to be the most "Unix-like" Linux distribution.
      • Salix - Salix is a Linux distribution based on Slackware that is simple, fast, and easy to use. Salix adds automated dependency resolution, a larger repository of applications, and a suite of native administration and configuration tools for both the GUI and the command line.
      • Gnuinos - Gnuinos is a lightweight Linux libre distro based on Devuan with no non-free software featuring OpenBox desktop.
      • Gentoo® - Gentoo is a Linux distribution built using the Portage package management system. Unlike a binary software distribution, the source code is compiled locally at the time of installation. Gentoo is known for its speed.
      • Redcore - Redcore Linux is a distribution based on Gentoo Linux that aims to be a very quick way to install a pure Gentoo Linux system without spending hours or days compiling from source code.
      • Alpine - Alpine Linux is an independent, non-commercial, general purpose Linux distribution designed for power users who appreciate security, simplicity and resource efficiency.
      • Adélie - Adélie Linux was created by Gentoo users who combined the power of Alpine with the ease-of-use of a binary package manager. Adélie is notable for supporting x86, PowerPC, MIPS, and ARM platforms.
      • GuixSD - GuixSD is an advanced distribution of the GNU operating system developed by the GNU Project, home of gcc and the GPL, which respects the freedom of computer users.
      • Linux From Scratch - Linux From Scratch is a way to install a working Linux system by building and installing all components manually, including the bootloader, kernel, and user programs.
      • Slackware - Slackware is a Linux distribution created by Patrick Volkerding in 1993. Slackware aims for design stability and simplicity and to be the most "Unix-like" Linux distribution.
      • heads - Heads is a live CD to connect securely over Tor, unlike Tails it does not rely on systemd or non-free software. awesome is default desktop environment.
      • Salix - Salix is a Linux distribution based on Slackware that is simple, fast, and easy to use. Salix adds automated dependency resolution, a larger repository of applications, and a suite of native administration and configuration tools for both the GUI and the command line.
      • Devuan - Devuan Linux is a fork of Debian without systemd from Unix veterans with the goal of becoming the new go-to base distribution for Linux. XFCE is default desktop environment.
      • Gnuinos - Gnuinos is a lightweight Linux libre distro based on Devuan with no non-free software featuring OpenBox desktop.
      • Redcore - Redcore Linux is a distribution based on Gentoo Linux that aims to be a very quick way to install a pure Gentoo Linux system without spending hours or days compiling from source code.
      • Adélie - Adélie Linux was created by Gentoo users who combined the power of Alpine with the ease-of-use of a binary package manager. Adélie is notable for supporting x86, PowerPC, MIPS, and ARM platforms.
      • Funtoo - Funtoo Linux is a Linux-based operating system that is a variant of Gentoo Linux.
      • GuixSD - GuixSD is an advanced distribution of the GNU operating system developed by the GNU Project, home of gcc and the GPL, which respects the freedom of computer users.
      • Dragora - The Dragora project produces a libre, reliable, Unix-like GNU/Linux distribution made from scratch.
    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Deepin - Deepin is a popular Chinese Linux distribution based on Debian with a focus on being a user-friendly desktop Linux distribution. It includes a number of pre-installed proprietary applications, such as Skype.
      • Deepin - Deepin is a popular Chinese Linux distribution based on Debian with a focus on being a user-friendly desktop Linux distribution. It includes a number of pre-installed proprietary applications, such as Skype.
      • Ubuntu® - Ubuntu is a Debian-based Linux distribution published by Canonical® who offer commercial support for enterprise-class Ubuntu Server variant.
      • elementaryOS - Distro elementaryOS is a consumer-oriented Linux distribution based on Ubuntu. It is the flagship distribution to showcase the Pantheon desktop environment. 💰
      • Oracle® - Oracle Linux® is compiled from Red Hat Enterprise Linux source code, replacing Red Hat branding with Oracle's, optimized to run Oracle software. 💰
    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • CentOS Stream - CentOS Stream is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform.
      • Solus - Solus is an independent desktop operating system based on the Linux kernel. It is offered as a curated rolling release model. It is the flagship distro for the Budgie desktop environment and closely tracks optimizations found in Clear Linux, making it one of the fastest desktop Linux distros available.
      • CentOS Stream - CentOS Stream is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform.
      • Parabola - Parabola is derived from Arch and provides packages from it that meet the Free Software Foundation guidelines and replacements for the packages that don't.
      • OpenSUSE - openSUSE formerly SUSE Linux and SuSE Linux Professional, is a Linux-based project and distribution sponsored by SUSE Linux and other companies.
      • Arch - Arch Linux is a Linux distribution for computers based on x86-64 architectures.
      • Manjaro - Manjaro Linux is an open source operating system for computers. It is a distribution of Linux based on the Arch Linux distribution.
      • Mageia - Mageia is a Linux based operating system, distributed as free and open source software. It is forked from the Mandriva Linux distribution.
  • Mobile Linux® Distributions

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • CopperheadOS® - CopperheadOS is a source-available operating system for smartphones and tablet computers, based on the Android mobile platform. It is based on the official releases of the Android Open Source Project by Google®, with added privacy and security features.💰
      • postmarketOS - postmarketOS, is a free and open-source operating system under development primarily for smartphones, based on the lightweight Alpine Linux distribution.
      • Halium Project - Halium is the collaborative project to unify the Hardware Abstraction Layer for projects which run GNU/Linux on mobile devices with pre-installed Android.
      • Mer - Mer is a free and open-source software distribution, targeted at hardware vendors to serve as a middleware for Linux kernel-based mobile-oriented operating systems. It is a fork of [MeeGo](https://en.wikipedia.org/wiki/MeeGo)™.
      • Sailfish OS - Sailfish OS is a general purpose Linux used commonly as mobile operating system combining the Linux kernel, the open-source Mer core stack of middleware, a proprietary UI, and other third-party components.
      • Tizen™ - Tizen is an open source, standards-based software platform for multiple device categories, including smartphones, tablets, TVs, netbooks and automotive infotainment platforms.
      • LuneOS - LuneOS is a mobile operating system based on the Linux kernel and currently developed by WebOS Ports community. LuneOS is the open source successor for Palm/HP webOS where the user interface is rebuilt from scratch by using the latest technologies available and installs on any devices compatible with CyanogenMod.
      • Chrome OS™ - Chrome OS is an operating system designed by Google that is based on the Linux kernel and uses the Google Chrome™ web browser as its principal user interface.
      • WebOS - WebOS is a Linux kernel-based multitasking operating system for smart devices that has been was first used as a mobile operating system on Palm devices and introduced a number of UX/design metaphors later duplicated in iOS and Android. Initially developed by Palm, then acquired by HP, and now owned by Qualcomm, it is now commonly found on LG-brand smart TVs.
      • LuneOS - LuneOS is a mobile operating system based on the Linux kernel and currently developed by WebOS Ports community. LuneOS is the open source successor for Palm/HP webOS where the user interface is rebuilt from scratch by using the latest technologies available and installs on any devices compatible with CyanogenMod.
      • Tizen™ - Tizen is an open source, standards-based software platform for multiple device categories, including smartphones, tablets, TVs, netbooks and automotive infotainment platforms.
      • Android™ - Android is a mobile operating system developed by Google®, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets.
      • CopperheadOS® - CopperheadOS is a source-available operating system for smartphones and tablet computers, based on the Android mobile platform. It is based on the official releases of the Android Open Source Project by Google®, with added privacy and security features.💰
      • Halium Project - Halium is the collaborative project to unify the Hardware Abstraction Layer for projects which run GNU/Linux on mobile devices with pre-installed Android.
      • Mer - Mer is a free and open-source software distribution, targeted at hardware vendors to serve as a middleware for Linux kernel-based mobile-oriented operating systems. It is a fork of [MeeGo](https://en.wikipedia.org/wiki/MeeGo)™.
      • Sailfish OS - Sailfish OS is a general purpose Linux used commonly as mobile operating system combining the Linux kernel, the open-source Mer core stack of middleware, a proprietary UI, and other third-party components.
  • Unique Linux® Distributions/Related Projects

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • GNUSTEP - GNUSTEP is a Linux live CD distribution based on Debian that prominently features the [GNUstep](https://en.wikipedia.org/wiki/GNUstep) application frameworks, a free software re-implementation of the OPENSTEP and Cocoa frameworks originally developed by NeXT with Sun Microsystems.
      • Windows Linux Subsystem - Windows® Subsystem for Linux (WSL) is a compatibility layer for running Linux binary executables natively on Windows 10. WSL currently supports Ubuntu, OpenSUSE Leap, SUSE Enterprise Linux, Debian, and Kali Linux. Official Fedora support is coming soon. Unofficial support for other distributions. 💰
      • GoboLinux - GoboLinux is an alternative Linux distribution which redefines the entire filesystem hierarchy. In GoboLinux you don't need a package database because the filesystem is the database .
      • NixOS Linux - NixOS is a Linux distribution that built on the unique completely declarative Nix package manager .
      • Bedrock - Bedrock Linux is a Linux distribution that currently installs from an existing Linux installation, allowing the user to select a preferred init at boot time and install Linux packages from multiple distributions at the same time .
      • GNUSTEP - GNUSTEP is a Linux live CD distribution based on Debian that prominently features the [GNUstep](https://en.wikipedia.org/wiki/GNUstep) application frameworks, a free software re-implementation of the OPENSTEP and Cocoa frameworks originally developed by NeXT with Sun Microsystems.
      • Windows Linux Subsystem - Windows® Subsystem for Linux (WSL) is a compatibility layer for running Linux binary executables natively on Windows 10. WSL currently supports Ubuntu, OpenSUSE Leap, SUSE Enterprise Linux, Debian, and Kali Linux. Official Fedora support is coming soon. Unofficial support for other distributions. 💰
      • GoboLinux - GoboLinux is an alternative Linux distribution which redefines the entire filesystem hierarchy. In GoboLinux you don't need a package database because the filesystem is the database .
      • oasis - A small statically-linked linux system suitable for a range of uses including server and desktop. The entire system can be compiled in minutes .
      • Red Star OS - Red Star OS is a North Korean Linux operating system developed for use in North Korea that computer researches have [noted](https://www.reuters.com/article/northkorea-computers/paranoid-north-koreas-computer-operating-system-mirrors-its-political-one-idUSKBN0UA0GF20151227) watermarks every document and media file on a computer or on any USB stick connected to it.
      • Kali Linux - Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd .
  • iOS

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • tvOS™ - tvOS is an operating system developed by Apple Inc. for the fourth-generation and later Apple TV digital media player. It is based on the iOS operating system.
      • iOS® - iOS is a mobile operating system created and developed by Apple Inc. with a larged shared code base with macOS.
      • watchOS® - watchOS is the mobile operating system of the Apple Watch®, developed by Apple Inc. It is based on the iOS operating system.
  • Solaris and illumos

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Solaris® - Solaris is a Unix operating system originally developed by Sun Microsystems, acquired by Oracle in 2010.
      • OpenIndiana - OpenIndiana is a free and open-source, Unix operating system derived from OpenSolaris and based on illumos. Developers forked OpenSolaris after Oracle Corporation discontinued it.
      • OmniOS - OmniOS builds on illumos to make a complete operating system and provide users with a familiar, installable operating system with a minimal package set to ease regulatory compliance.
      • DilOS - DilOS is an illumos-based platform featuring the Debian package manager (dpkg+apt).
      • Tribblix - Tribblix is an operating system created by Peter Tribble. Derived from OpenSolaris, OpenIndiana, and illumos, it blends a retro style with modern components.
      • XStreamOS - XStreamOS is an effort to mantain a distribution of the illumos kernel, featuring a customized text install, the ZFS fileystem, advanced features, and a starting point to contribute and develop the illumos kernel.
      • v9os - Server-only, IPS-based minimal SPARC-only distribution of illumos.
      • SmartOS - SmartOS is a free and open-source SVR4 hypervisor, based on the illumos operating system that combines OpenSolaris technology with Linux's KVM virtualization.
      • illumos - Derived from OpenSolaris, illumos is a free and open-source Unix operating system, derived from SVR4 UNIX and BSD.
      • DilOS - DilOS is an illumos-based platform featuring the Debian package manager (dpkg+apt).
      • v9os - Server-only, IPS-based minimal SPARC-only distribution of illumos.
      • DilOS - DilOS is an illumos-based platform featuring the Debian package manager (dpkg+apt).
      • Solaris® - Solaris is a Unix operating system originally developed by Sun Microsystems, acquired by Oracle in 2010.
      • illumos - Derived from OpenSolaris, illumos is a free and open-source Unix operating system, derived from SVR4 UNIX and BSD.
      • OpenIndiana - OpenIndiana is a free and open-source, Unix operating system derived from OpenSolaris and based on illumos. Developers forked OpenSolaris after Oracle Corporation discontinued it.
      • OmniOS - OmniOS builds on illumos to make a complete operating system and provide users with a familiar, installable operating system with a minimal package set to ease regulatory compliance.
      • Tribblix - Tribblix is an operating system created by Peter Tribble. Derived from OpenSolaris, OpenIndiana, and illumos, it blends a retro style with modern components.
      • XStreamOS - XStreamOS is an effort to mantain a distribution of the illumos kernel, featuring a customized text install, the ZFS fileystem, advanced features, and a starting point to contribute and develop the illumos kernel.
  • More Unix-Like Operating Systems

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Haiku - Haiku is a free and open-source operating system compatible with the now-discontinued BeOS.® Its development began in 2001, and the operating system became self-hosting in 2008 .
      • PureDarwin - PureDarwin is a operating system based on the open-source components of Apple's macOS operating system, principally code derived from NeXTSTEP, BSD, Mach, and other software projects released under free software licenses.
      • Akaros - Akaros is an open source, GPL-licensed operating system for manycore architectures. The goal is to provide support for parallel and high-performance applications and to scale to a large number of cores .
      • Minix® - Minix® is a POSIX®-compliant Unix-like computer operating system based on a microkernel architecture. In 2017 it was learned that Intel™ used a version of MINIX on many of its x86-series processors, perhaps making it the most popular Unix-like operating system .
      • PureDarwin - PureDarwin is a operating system based on the open-source components of Apple's macOS operating system, principally code derived from NeXTSTEP, BSD, Mach, and other software projects released under free software licenses.
      • FiwixOS - FiwixOS is a UNIX-like operating system that includes the Fiwix kernel, GNU Toolchain, libraries and additional software. It uses [Newlib](https://sourceware.org/newlib/) as its C library and all the included software is free and open-source software. The Fiwix kernel is written from scratch and aims for Linux 2.0 system call compatiblility.
      • Minoca OS - Minoca OS is a general purpose operating system written from scratch. It aims to be lean, maintainable, modular, and compatible with existing software.
      • ToaruOS - ToaruOS is a hobbyist, educational, Unix-like operating system built entirely from scratch. It includes a kernel, bootloader, dynamic linker, C standard library, composited windowing system, and several utilities and applications .
  • Plan 9 Derivatives

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Jehanne - Jehanne is a new distributed operating system designed for programmers. The core values that lead the development are simplicity and security. Jehanne is a fork of Harvey.
      • Inferno® - Inferno was an effort to commercialize Plan 9 as networking software. However, like Plan 9, it remained obscure while its ideas permeated into current operating systems.
      • distributed computing - released under the GPL and projects exist to build on Plan 9. Many Bell Labs employees still volunteer on these projects.
      • 9legacy - 9legacy is an experimental patch queue for Plan 9 from Bell Labs .
      • Harvey OS - Harvey is an effort to provide a modern, distributed, 64 bit operating system. A different environment for researching and finding new lines of work. It can be built with gcc and clang and has an ANSI/POSIX compliant subsystem.
      • Inferno® - Inferno was an effort to commercialize Plan 9 as networking software. However, like Plan 9, it remained obscure while its ideas permeated into current operating systems.
      • Jehanne - Jehanne is a new distributed operating system designed for programmers. The core values that lead the development are simplicity and security. Jehanne is a fork of Harvey.
  • Unix-like Real Time Operating Systems

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • LynxOS® - The LynxOS RTOS is a Unix-like real-time operating system from Lynx Software Technologies. LynxOS features full POSIX conformance and, more recently, Linux compatibility. 💰
      • real-time operating system - time applications that process data as it comes in, typically without buffer delays. An example of this in QNX which is used widely in cars and aircraft.
      • Fuchsia - Fuchsia is a new real-time operating system (RTOS) [currently being developed](https://lwn.net/Articles/718267/) by Google with a degree of POSIX compataibility.
      • LynxOS® - The LynxOS RTOS is a Unix-like real-time operating system from Lynx Software Technologies. LynxOS features full POSIX conformance and, more recently, Linux compatibility. 💰
      • nuttX® - NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable, the primary focus in NuttX are POSIX and ANSI standards.
      • QNX® - QNX is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market, found in many modern automobiles. 💰
      • Integrity® - Integrity is a real-time operating systems produced and marketed by Green Hills Software. Integrity-178B has a top National Security Agency rating. 💰
  • Additional Resources

    • More UNIX®

    • UNIX® Code/Emulation

      • osabandonware - A git-based archive of abandonware operating systems.
      • AT&T 3B1 Emulator - Emulate the original AT&T UNIX.
      • The UNIX Tree - Browse the source code and manuals of various old versions of Unix.
      • Unix History Repository - The source code of the original UNIX through its various versions implemented in git.
      • osabandonware - A git-based archive of abandonware operating systems.
      • AT&T 3B1 Emulator - Emulate the original AT&T UNIX.
      • WinWorld Library - Collection of abandonware operating systems, including many old UNIX and Unix-like operating systems.
      • The UNIX Tree - Browse the source code and manuals of various old versions of Unix.
    • UNIX®/POSIX® Technical Standards

    • Community

      • OFTC
      • Reddit - A social news aggregation, web content rating, and discussion website.
      • Snoonet
      • /r/freebsd - News and more about FreeBSD. ~9k users.
      • /r/slackware - Slackware Linux discussion and support. ~2k users.
      • /r/plan9 - Discussion surrounding Plan 9 from Bell Labs. ~1k users.
      • /r/linux - General GNU/Linux discussion. ~330k users.
      • /r/debian - News and other stuff about Debian. ~23k users.
      • /r/fedora - News, information, and support surrounding Fedora. ~16k users.
      • /r/hurd - GNU HURD discussion and support. ~1k users.
      • /r/minix - Discussion surrounding the MINIX 3 OS by Andrew S. Tanenbaum. ~600 users.
      • Awesome Sysadmin
      • /r/solaris - Oracle Solaris news and discussion. ~1k users.
      • /r/arch - Arch Linux discussion and support. ~65k users.
      • /r/haikuOS - Discussion, support, progress reports, and news about Haiku OS. ~1k users.
      • DistroWatch - DistroWatch is a website which provides news, popularity rankings, and other general information about various Linux distributions and operating systems.
      • freenode
      • nixCraft - NixCraft is an online community of new and seasoned Linux / Unix users.
      • /r/unixporn - Dedicated to NIX customization, screenshots, and configurations. ~123k users.
      • /r/ubuntu - Specific news, information, and discussion about Ubuntu. ~95k users.
      • /r/BSD - A place for all things BSD. ~10k users.
    • Free Software and Open Source Movements

      • USENIX℠ - The USENIX Association is the Advanced Computing Systems Association. It was founded in 1975 under the name "Unix Users Group," focusing primarily on the study and development of Unix and similar systems.
      • FreeBSD Foundation - The FreeBSD Foundation is a non-profit organization dedicated to supporting and building the FreeBSD Project and community worldwide.
      • USENIX℠ - The USENIX Association is the Advanced Computing Systems Association. It was founded in 1975 under the name "Unix Users Group," focusing primarily on the study and development of Unix and similar systems.
      • The Open Group® - The Open Group is a vendor- and technology-neutral industry consortium and is the certifying body for the UNIX trademark and publishes the Single UNIX Specification technical standard, which extends the POSIX standards.
      • FreeBSD Foundation - The FreeBSD Foundation is a non-profit organization dedicated to supporting and building the FreeBSD Project and community worldwide.
    • Notable Historic UNIX® and Unix®-like Operating Systems

      • Tru64 UNIX® - Tru64 UNIX® is a discontinued 64-bit UNIX® operating system for the Alpha® platform, currently owned by HP®. Previously, Tru64 UNIX® was a product of Compaq® and before that DEC™, where it was known as Digital UNIX™. It was unusual among commercial UNIX implementations as it is built on top of the [Mach kernel](https://en.wikipedia.org/wiki/Mach_(kernel)) like macOS.®
      • NeXTSTEP - NeXTSTEP is a discontinued object-oriented, multitasking operating system based on UNIX. It was developed by NeXT Computer in the late 1980s and early 1990s and was initially used for its range of proprietary workstation computers such as the NeXTcube.
      • Interview - With project lead, Toshihide Doi.
      • Sony History Page
      • Interview - With project lead, Toshihide Doi.
      • Project Athena - Project Athena was a joint project of MIT, Digital Equipment Corporation, and IBM to produce a campus-wide distributed computing environment for educational use. The project spawned many technologies that are widely used today, such as the [X Window System](https://en.wikipedia.org/wiki/X_Window_System) and [Kerberos](https://en.wikipedia.org/wiki/Kerberos_(protocol)). Athena was originally based on BSD, followed by IRIX, and then Linux. The Athena tools live in an MIT student project, [Debathena](https://debathena.mit.edu).
      • Interview - With Alex Rosenberg, former Manager of Platform Architecture at Sony.
      • CoLinux - Cooperative Linux, abbreviated coLinux, was software which allowed Microsoft Windows and the Linux kernel to run simultaneously in parallel on the same machine.
      • IRIX® - IRIX is a discontinued operating system developed by Silicon Graphics (SGI) to run natively on their MIPS workstations and servers. It is based on UNIX System V with BSD extensions. SGI's Indigo Magic™ Desktop for IRIX® is still [under active development](http://www.maxxinteractive.com/site/?page_id=2) for IRIX and Linux.
      • Sony History Page
      • Darwin - Darwin is an open-source Unix operating system released by Apple, Inc. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, Mach, and other free software projects.
      • MkLinux - MkLinux is an open source computer operating system started by the Open Group and Apple in 1996 to port Linux to Macintosh computers. Its last release was in 2002.
      • Microsoft Xenix® - Xenix is a discontinued version of the Unix operating system for various microcomputer platforms, licensed by Microsoft® from AT&T in the late 1970s. After the discontinuation of Xenix, Microsoft offered [Windows Services for UNIX](https://en.wikipedia.org/wiki/Windows_Services_for_UNIX#1.0) for Windows NT 4 through Windows 8. Windows 10, the successor to Windows 8, features the [Windows Linux Subsystem](https://docs.microsoft.com/en-us/windows/wsl/about).
      • BSD386 - BSD/OS (originally called BSD/386 and sometimes known as BSDi) is a discontinued proprietary version of the BSD operating system developed by Berkeley Software Design, Inc. (BSDi).
      • BeOS® - BeOS is an operating system for personal computers first developed by Be Inc. in 1991 built for digital media work with partial POSIX® compatibility.
      • NEWS-OS - NEWS-OS was an operating system from Sony based on [BSD then System V](http://archive.is/a5hbc) that powered a line of series of Unix workstations sold during the late 1980s and 1990s. The first NEWS machine workstations appeared in Japan in January 1987 and was conceived as a desktop replacement for the VAX series. NEWS-OS was notable for having advanced TCP/IP networking features and being the first development tool for the new Sony Playstation.
      • ULTRIX® - ULTRIX is the brand name of Digital Equipment Corporation's discontinued native UNIX operating systems for the PDP-11, VAX, and DECstations.
  • More macOS®

  • More illumos®

  • More BSD

  • UNIX and Unix-Like Hardware Vendors

  • Frequently Asked Questions

  • UNIX-Certified Linux-Based Operating Systems

    • Disambiguation: AT&T UNIX®, UNIX® Certification, UNIX®-Like, and Linux®

      • K-UX - euleros)® from Huawei.
  • More Linux®

  • Embedded/IoT-Focused Linux® Distributions

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • OpenWrt - OpenWrt is an open source project for an embedded operating system based on Linux, primarily used on embedded devices to route network traffic.
      • Ångström - A Linux distribution for a variety of embedded devices. The distribution is the result of work by developers from the OpenZaurus, OpenEmbedded, and OpenSIMpad projects.
      • Poky - Poky is a reference distribution for the Yocto Project™, an open source project that provides templates, tools, and methods to create custom Linux-based systems for embedded devices.
      • Raspberry Pi OS - Raspberry Pi OS is a Debian-based computer operating system for Raspberry Pi.
      • Tiny Core Linux - Tiny Core Linux (TCL) is a minimal Linux operating system focusing on providing a base system using BusyBox and FLTK, developed by Robert Shingledecker.
  • GNU Hurd

    • Most Unix®-Like Engineered Linux [Distributions](https://en.wikipedia.org/wiki/Linux_distribution)

      • Arch GNU/Hurd - Arch GNU/Hurd is an implementation of the GNU Hurd on the Arch userspace with the pacman package manager.
      • GNU/Hurd - GNU Hurd is a multiserver microkernel developed by the GNU Project. It has been under development since 1990 and is designed as a replacement for the Unix kernel. It is released as free software under the GNU General Public License .
      • Debian GNU/Hurd - Debian GNU/Hurd is an implementation of the GNU Hurd on the Debian userspace with the apt package manager.