The majority of the world uses a default or big tech operating systems, but there are many alternatives out there which may be a better choice. Take a look through our list & see if there is something you like the look of.
- 2K https://dl.acm.org/citation.cfm?id=871061
- 4690 Operating System https://www.toshibacommerce.com
- AcadOS http://homepage.divms.uiowa.edu/~jones/acados
- Acorn RISC OS https://www.riscosopen.org
- AiroCorp http://airocorp.com
- AIX https://www.ibm.com/it-infrastructure/power/os/aix
- Alacris https://alacris.io
- Aleris https://www.aleris.com
- Allegro https://www.allegro.com
- AmigaOS https://www.amigaos.net
- Amiga Unix http://www.amigaunix.com/doku.php
- Amoeba https://www.cs.vu.nl/pub/amoeba
- AMX RTOS http://www.kadak.com/rtos/rtos.htm
- AneedA https://iamplus.com
- Apollo OS https://github.com/Arawn-Davies/Apollo-OS
- Apostle Project http://apostle.sourceforge.net
- AROS http://aros.sourceforge.net
- AtheOS http://atheos.pyro-os.org
- AtomsNet http://atoms.sourceforge.net
- Atomthreads http://atomthreads.com/index.php
- AutoSense OS https://www.phonak.com/us/en/about-us/autosense-os-technology.html
- Azure Sphere https://azure.microsoft.com/en-us/services/azure-sphere
- BareMetal http://www.returninfinity.com
- Bitrig https://www.bitrig.org
- BlackBerry OS https://global.blackberry.com/en/software/smartphones/blackberry-10-os
- BlueEyedOS http://www.blueeyedos.com
- Brew https://developer.brewmp.com
- BS2000 https://www.fujitsu.com/fts/products/computing/servers/mainframe/bs2000
- CapROS http://www.capros.org
- Centrifuge https://centrifuge.io
- Chaos http://chaosdev.io
- ChibiOS http://www.chibios.org/dokuwiki/doku.php
- Chimera RTOS http://www.cs.cmu.edu/~aml/chimera/chimera.html
- Choices http://choices.cs.illinois.edu
- Chromium OS https://www.chromium.org/chromium-os
- Cinder http://www.scs.stanford.edu/cinder
- Cisco IOS https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-technologies/index.html
- Cisco NX-OS https://www.cisco.com/c/en/us/products/ios-nx-os-software/nx-os/index.html
- Contiki http://www.contiki-os.org
- COS http://www.china-cos.com
- Cosmos https://www.gocosmos.org
- CP/M & CP/M Plus http://www.digitalresearch.biz/CPM.HTM
- Darwin https://opensource.apple.com
- DBOS https://www.dbos.global
- Deos https://www.ddci.com/products_deos_do_178c_arinc_653
- DesktopBSD https://www.desktopbsd.net
- DexOS http://dex-os.github.io
- DragonFlyBSD https://www.dragonflybsd.org
- DROPS http://os.inf.tu-dresden.de/drops
- DSPnano RTOS http://rowebots.com/products/dspnano
- DTOS http://www.cs.utah.edu/flux/fluke/html/dtos/HTML/dtos.html
- eCos http://ecos.sourceware.org
- EduOS https://github.com/RWTH-OS/eduOS
- EGOS https://egosllc.com
- EMBOS https://www.segger.com/products/rtos/embos
- EmuTOS http://emutos.sourceforge.net
- EOS https://www.eosworldwide.com
- EOSIO https://eos.io
- Erika http://erika.tuxfamily.org/drupal
- Fabric OS https://www.broadcom.com/products/fibre-channel-networking/software/fabric-operating-system
- FlingOS https://github.com/FlingOS
- FortiOS https://www.fortinet.com/products/fortigate/fortios
- FreeBSD https://www.freebsd.org
- FreeDOS https://www.freedos.org
- FreeVMS http://www.freevms.net
- Frenzy https://distrowatch.com/table.php?distribution=frenzy
- Friend OS https://friendos.com
- Fuchsia https://fuchsia.dev
- FullPliant https://www.fullpliant.org
- FxOS https://www.cisco.com/c/en/us/td/docs/security/firepower/fxos/compatibility/fxos-compatibility.html
- GazOS http://gazos.sourceforge.net
- GeekOS http://geekos.sourceforge.net
- Gemini Nucleus http://gemini.sourceforge.net
- GemOS https://enterprise.gem.co
- Genode https://genode.org
- Ghost OS https://ghostkernel.org
- GhostBSD https://www.ghostbsd.org
- GNU https://www.gnu.org/home.en.html
- GNU Hurd https://www.gnu.org/software/hurd
- GNUstep http://www.gnustep.org
- GoOS https://github.com/nutterts/GoOS
- Haiku https://www.haiku-os.org
- HeartOS https://www.ddci.com/products_heartos
- HelenOS http://www.helenos.org
- Hive https://hiveos.farm
- House http://programatica.cs.pdx.edu/House
- HP-UX https://www.hpe.com/us/en/servers/hp-ux.html
- IBM AIX https://www.ibm.com/it-infrastructure/power/os/aix
- IBM z/VSE https://www.ibm.com/it-infrastructure/z/zvse
- Icaros Desktop https://www.patreon.com/icarosdesktop
- IchigoJam https://na-s.jp/IJBRPi
- Illumos https://www.illumos.org
- Inferno http://www.vitanuova.com
- INTEGRITY https://www.ghs.com/products/rtos/integrity.html
- iOS https://www.apple.com/ios
- iPadOS https://www.apple.com/ipados
- iPod software https://support.apple.com/downloads/ipod
- JOS http://jos.sourceforge.net
- Junos https://www.juniper.net/us/en/products-services/nos/junos
- JX OS http://www4.cs.fau.de/Projects/JX
- KaOS https://kaosx.us
- Kaspersky https://os.kaspersky.com
- KolibriOS https://kolibrios.org
- kOS https://ksp-kos.github.io/KOS
- Kronos https://www.korg.com/us/support/download/software/0/424/1514
- KRUD https://distrowatch.com/table.php?distribution=krud
- KUKA Sunrise.OS https://www.kuka.com/en-us/products/robotics-systems/software/system-software/sunriseos
- Kylin http://www.kylinos.cn
- L4 http://l4hq.org/projects/os
- Linux https://www.linux.com/what-is-linux
- LSE/OS http://lseos.sourceforge.net
- LuninuxOS https://luninuxos.com/about.html
- LynxOS https://www.lynx.com
- macOS https://www.apple.com/macos
- Manos https://github.com/hellertime/manos
- MaRTE OS https://marte.unican.es
- Mavericks https://support.apple.com/downloads/mavericks
- MidnightBSD https://www.midnightbsd.org
- MikeOS http://mikeos.sourceforge.net
- Minix3 https://www.minix3.org
- Minoca https://github.com/minoca/os
- MenuetOS http://menuetos.net
- MkLinux http://mklinux.org
- Möbius http://mobius.sourceforge.net
- ModulOS http://modulos.sourceforge.net
- MorphOS https://www.morphos-team.net
- MOSIX http://www.mosix.org
- MUTOS http://www.robotrontechnik.de/index.htm?/html/software/mutos.htm
- Nachos https://www.cs.odu.edu/~cs471/soumya/salsa.html
- Nemesis http://nemesis.sourceforge.net
- Nerthus https://nerthusfoundation.org
- NetBSD https://www.netbsd.org
- NewOS http://newos.org
- Nexenta https://nexenta.com
- Nexus https://www.cs.cornell.edu/people/egs/nexus
- Nimbus https://sourceforge.net/p/nimbusos/wiki/Home
- Nintendo Switch OS https://www.nintendo.com/switch
- Node-OS https://node-os.com
- nOS https://nos.io
- Nova http://repo.nova.cu
- Nucleus RTOS https://www.mentor.com/embedded-software/nucleus
- O3ONE http://www.o3one.org
- Oberon http://www.projectoberon.com
- Odin https://samsungodin.com
- On Time RTOS-32 http://www.on-time.com
- ONTAP https://www.netapp.com/us/products/data-management-software/ontap.aspx
- Opal https://homes.cs.washington.edu/~levy/opal/opal.html
- OpenBSD https://www.openbsd.org
- OpenIndiana https://www.openindiana.org
- OpenVMS https://www.vmssoftware.com
- OppcOS http://oppcos.sourceforge.net
- OSE https://www.enea.com/ose
- osFree http://www.osfree.org
- OSv http://osv.io
- Paros http://research.ac.upc.edu/paros
- PetrOS http://www.trumpet.com.au/index.php/products/9-operating-systems/20-petrosr-operating-system.html
- Phantom http://dzavalishin.github.io/phantomuserland
- PikeOS https://www.sysgo.com/products/pikeos-hypervisor
- PIOS http://zoo.cs.yale.edu/classes/cs422/pios
- Plan 9 from Bell Labs https://9p.io/plan9
- PM_SZ_OS https://www.the-sz.com/products/pm_sz_os
- PonyOS https://ponyos.org
- PowerMAX https://www.dellemc.com
- Proolix http://www.cs.cmu.edu/~brians/comp/proolix.html
- PTS DOS http://phystechsoft.ru/pts-dosl
- Puppy Linux http://puppylinux.com
- PureDarwin http://www.puredarwin.org
- PureOS https://www.pureos.net
- QNX https://blackberry.qnx.com
- Quant Network https://www.quant.network
- RadiOS http://radios.sourceforge.net
- RCOSjava http://rcosjava.sourceforge.net
- ReactOS https://reactos.org
- REAL/32 https://winworldpc.com/product/real-32/7x
- REBOL-IOS http://www.rebol.com/index-ios.html
- Red Hat Linux https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux
- Red Star OS https://www.visitthedprk.org/made-in-north-korea-red-star-o-s
- Redox https://www.redox-os.org
- Remix OS http://www.jide.com/en/remixos
- REWIN OS https://www.cht.com
- RISC OS Pi https://www.riscosopen.org/content/downloads/raspberry-pi
- Rodos http://www8.informatik.uni-wuerzburg.de/wissenschaftforschung/rodos
- ROME http://rome.sourceforge.net
- RTEMS https://www.rtems.org
- RTOS-UH http://rtos.iep.de/indexe.htm
- RTX https://www.intervalzero.com
- RTXC Quadros RTOS http://quadros.com/products/operating-systems/rtxc-quadros-rtos-advanced
- RxDOS https://sourceforge.net/projects/rxdos
- S.Ha.R.K http://shark.sssup.it
- Safebit https://safebit.io
- Sanos http://www.jbox.dk/sanos
- ScorchOS https://sourceforge.net/projects/scorchos
- ScottsNewOS http://scottsnewos.sourceforge.net
- SCP Foundation Operating System http://www.scp-wiki.net/forum/t-2050004/scp-foundation-operating-system
- SEVMS VAX https://www.cyber.gov.au/publications/epl/sevms-vax
- SharkOS https://distrowatch.com/table.php?distribution=shark
- ShawnOS https://github.com/shawnanastasio/ShawnOS
- Sinclair OS https://sinclair-uk.weebly.com/sinclair-os.html
- SimpleOS http://sos.enix.org/fr/PagePrincipale
- SmartOS https://www.joyent.com/smartos
- Solaris https://www.oracle.com/solaris
- SPIN http://www-spin.cs.washington.edu
- Spinix http://www.ibiblio.org/spinix/about.html
- Spring https://www.iaps.com/Spring.html
- Squeak http://wiki.squeak.org/squeak/5727
- STARCOS http://www.arp.com/medias/13438540.pdf
- SteamOS https://store.steampowered.com/steamos
- Stratus VOS https://www.stratus.com/es/solutions/platforms/v-series-continuum-openvos/operating-systems
- Stupid Operating System https://github.com/sos-os/kernel
- SymbOS http://www.symbos.de
- Symobi http://www.symobi.com
- Symphony OS https://distrowatch.com/table.php?distribution=symphony
- Talos https://github.com/talos-systems/talos
- TAOS http://www.uruk.org/emu/Taos.html
- TCx Sky Operating System https://www.toshibacommerce.com
- TempleOS https://templeos.org
- The Operating System http://www.theoperatingsystem.org
- THEOS http://www.theos-software.com
- Thix http://hulubei.net/tudor/thix/index.html
- THREADX ROTS https://rtos.com/solutions/threadx/real-time-operating-system
- TI-RTOS Kernel http://www.ti.com/tool/TI-RTOS-MCU
- TinyOS hhttp://www.tinyos.net
- Tizen https://www.tizen.org
- ToaruOS https://toaruos.org
- TORNADO http://www.tornado-os.com
- Torsion http://www.nongnu.org/torsion
- TRON https://www.tron.org
- TRON Network https://tron.network
- TrueOS https://www.trueos.org
- TUD:OS http://demo.tudos.org
- tvOS https://developer.apple.com/tvos
- µ-velOSity https://www.ghs.com/products/micro_velosity.html
- µC/OS https://www.micrium.com/rtos
- UberOS https://github.com/TsarN/uber-os
- UDOS http://www.sde.cs.titech.ac.jp/~gondow/udos/index.html
- Unix https://www.opengroup.org/membership/forums/platform/unix
- UnixWare https://www.xinuos.com/menu-products/unixware-2018
- V2 OS https://www.v2.nl/archive/works/v2_os
- Veloce OS3 https://www.mentor.com/products/fv/emulation-systems/veloce-apps#os3
- VisiOn http://www.theoperatingsystem.org/vision-mission
- Visopsys https://visopsys.org
- VM/ESA http://www.vm.ibm.com/techinfo/vmfblank.html
- VMS https://www.vmssoftware.com
- VxWorks https://www.windriver.com/products/vxworks
- WatchOS https://www.apple.com/watchos
- Wii U OS http://nintendotoday.com/wii-u-operating-system
- Windows/Windows NT https://www.microsoft.com/en-us/windows
- Xbox 360 OS https://support.xbox.com/en-US/xbox-360/console/system-update-operating-system
- Xbox One https://support.xbox.com/en-US/browse/xbox-one/console/System%20update
- Xinu https://xinu.cs.purdue.edu
- Xinuos OpenServer https://www.xinuos.com/menu-products/openserver-10
- xMach http://xmach.sourceforge.net
- XTS-400 https://www.baesystems.com
- Yamit https://sourceforge.net/p/yamit/wiki/Home
- z/VM https://www.ibm.com/it-infrastructure/z/zvm
- z/OS https://www.ibm.com/it-infrastructure/z/zos
- Zephyr https://www.zephyrproject.org
- ZevenOS https://www.zevenos.com
- Zorin OS https://zorinos.com Let us know if we missed your favorite operating system.
This data is from Vuild’s operating systems list. Please visit vuild.com for more.
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