OS Archive!

Filters

Check out the newest additions!

Filter	Options
Family	Linux BSD Windows Unix-like DOS Custom
UI	Graphical Text
Medium	Floppy CD HD
Size	512 B <5 MB >5 MB
Status	Modern Historic
License	Open-Source Proprietary
Arch	16-bit 32-bit
Lang	ASM C C++ Other

Operating System Directory

Name	Size	UI	Family	Arch	Status	Source	Lang	Medium	Notes
Android	54+ MB	Graphical	Linux	32-bit	Modern	Open-source	C++	CD	Android x86 1.6-r2
Arch Linux	15+ MB	Graphical	Linux	32-bit	Modern	Open-source	C	CD	Various packages, including Xorg, Firefox and more
Buildroot Linux	4.9 MB	Text	Linux	32-bit	Modern	Open-source	C	bzImage	Minimal Linux with Lua, ping, curl, telnet
Damn Small Linux	50 MB	Graphical	Linux	32-bit	Historic	Open-source	C	CD	4.11.rc2 with Firefox 2.0
ELKS	1.2 MB	Text	Linux-like	16-bit	Modern	Open-source	C	HD	Linux for 8086
NodeOS	14 MB	Text	Linux	32-bit	Modern	Open-source	C	bzImage	Linux with nodejs as /bin/init
Tilck	16 MB	Graphical	Linux-like	32-bit	Modern	Open-source	C	HD	Tiny Linux-Compatible Kernel
FreeBSD	16+ MB	Graphical	BSD	32-bit	Modern	Open-source	C	HD	FreeBSD 12.0
NetBSD	23+ MB	Graphical	BSD	32-bit	Modern	Open-source	C	HD	NetBSD 4.0 with Xorg
OpenBSD	11+ MB	Graphical	BSD	32-bit	Modern	Open-source	C	HD	OpenBSD 6.6
Arch Hurd	16+ MB	Graphical	Hurd	32-bit	Modern	Open-source	C	HD	A port of Arch Linux to the GNU Hurd system
BSD/OS	10+ MB	Graphical	BSD	32-bit	Historic	Proprietary	C	HD	A proprietary Unix released in 1993 as BSD/386. Includes gcc and perl5
FiwixOS	4.2+ MB	Graphical	Unix-like	32-bit	Modern	Open-source	C	HD	With Doom
Minix	30+ MB	Graphical	Unix-like	32-bit	Modern	Open-source	C	CD	Minix 3.3
Redox	31+ MB	Graphical	Unix-like	32-bit	Modern	Open-source	Rust	HD	A Unix-like microkernel OS written in Rust
SerenityOS	16+ MB	Graphical	Unix-like	32-bit	Modern	Open-source	C++	HD	Web browser, various games and demos
Sortix	67 MB	Graphical	Unix-like	32-bit	Modern	Open-source	C++	CD	A small self-hosting Unix-like operating system
Soso	7.6 MB	Graphical	Unix-like	32-bit	Modern	Open-source	C	CD	A Simple Unix-like operating system
Syllable	28+ MB	Graphical	Unix-like	32-bit	Historic	Open-source	C++	HD	A user friendly, POSIX compatible OS
Unix V7	0.5+ MB	Text	Unix	32-bit	Historic	Proprietary	C	HD	Unix V7 port for x86, including Amsterdam Compiler Kit
BeOS 5	34+ MB	Graphical	BeOS	32-bit	Historic	Proprietary	C++	HD	With Opera 3.62, NetPositive
Haiku	36+ MB	Graphical	BeOS	32-bit	Modern	Open-source	C++	HD	Networking (WebPositive), OCaml, 2048, NetHack
AROS Broadway	25+ MB	Graphical	AmigaOS	32-bit	Modern	Open-source	C	CD	AmigaOS-like graphical OS
Icaros Desktop	60+ MB	Graphical	AmigaOS	32-bit	Modern	Open-source	C	CD	AmigaOS-like graphical OS
Tiny Aros	17+ MB	Graphical	AmigaOS	32-bit	Modern	Open-source	C	CD	AmigaOS-like graphical OS
9front	5.2+ MB	Text	Plan 9	32-bit	Modern	Open-source	C	HD	An actively maintained fork of Plan 9
9legacy	13 MB	Text	Plan 9	32-bit	Historic	Open-source	C	HD	A set of patches based on the latest release of Plan 9
ReactOS	17+ MB	Graphical	Windows-like	32-bit	Modern	Open-source	C++	HD	QtWeb, LBreakout2, OpenTTD, Bochs, TCC
Windows 1.0	0.7 MB	Graphical	Windows	16-bit	Historic	Proprietary	ASM, C	Floppy	The first release version of Windows
Windows 2.0	1.8 MB	Graphical	Windows	16-bit	Historic	Proprietary	ASM	CHD	Reversi, Paint
Windows 3.0	6.5 MB	Graphical	Windows	16-bit	Historic	Proprietary	ASM	CCD	CorelDRAW! 2.0, Reversi
Windows 3.1	7 MB	Graphical	Windows	16-bit	Historic	Proprietary	ASM	CHD	QBasic, Minesweeper, Solitaire
Windows 95	19+ MB	Graphical	Windows	32-bit	Historic	Proprietary	ASM	HD	Age of Empires, FASM, POV-Ray, Hover!
Windows 98	13+ MB	Graphical	Windows	32-bit	Historic	Proprietary	ASM	HD	FreeCell, Hearts, sheep.exe, IE 5
Windows ME	14+ MB	Graphical	Windows	32-bit	Historic	Proprietary	ASM	HD	Visual Basic, Office 97
Windows NT 3.1	18+ MB	Graphical	Windows	32-bit	Historic	Proprietary	C++	HD	The first retail version of Windows NT
Windows NT 3.51	28+ MB	Graphical	Windows	32-bit	Historic	Proprietary	C++	HD	Internet Explorer 3 and Visual FoxPro 3.0
Windows NT 4.0	16+ MB	Graphical	Windows	32-bit	Historic	Proprietary	C++	HD	Windows NT 4.0 Service Pack 1
Windows 2000	28+ MB	Graphical	Windows	32-bit	Historic	Proprietary	C++	HD	IE 6, K-Meleon, Winamp, Delphi, NetHack and more
86-DOS	0.1 MB	Text	DOS	16-bit	Historic	Proprietary	ASM	Floppy	86-DOS version 1.0
Exploring IBM	0.1 MB	Text	DOS	16-bit	Historic	Proprietary	ASM	Floppy	Learning program on how to use a computer
FreeDOS	0.6 MB	Text	DOS	16-bit	Modern	Open-source	ASM, C	Floppy	nasm, vim, debug.com, Rogue, various demos
FreeGEM	1.6+ MB	Graphical	DOS	16-bit	Historic	Open-source	ASM	HD	Graphical desktop for FreeDOS
Xcom	1.3 MB	Graphical	DOS	16-bit	Historic	Open-source	ASM, C	Floppy	Graphical desktop for FreeDOS
MS-DOS 4	0.5 MB	Text	DOS	16-bit	Historic	Proprietary	ASM	Floppy	Contains EDLIN
MS-DOS 6.22	2.4+ MB	Text	DOS	16-bit	Historic	Proprietary	ASM	HD	Doom, Sim City, OCaml 1.0, Turbo C and more
PC-MOS/386	0.7 MB	Text	DOS	32-bit	Historic	Proprietary	ASM, C	Floppy	Multi-user and multi-tasking OS
PsychDOS	4.6+ MB	Graphical	DOS	16-bit	Historic	Open-source	ASM	HD	ANSI-like graphical desktop for FreeDOS
lEEt/OS	0.5 MB	Graphical	DOS	32-bit	Modern	Open-source	ASM, C	Floppy	Graphical desktop for ST-DOS
BleskOS	0.2 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Alternative OS for older PCs
Blue Jay	83 KB	Text	Custom	16-bit	Modern	Open-source	ASM	Floppy	Based on MikeOS
BoneOS	3.0 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Simple hobby OS
BootChess	4.0 KB	Text	Custom	16-bit	Modern	Open-source	ASM	Floppy	Chess in a bootsector
Cat	3.2 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Simple Unix-like kernel
Crazierl	11 MB	Text	Custom	32-bit	Modern	Open-source	C, Erlang	Multiboot	An Erlang Operating System
Dusk OS	0.4 MB	Graphical	Custom	32-bit	Modern	Open-source	C	Floppy	A 32-bit Forth
Floppy Bird	6.5 KB	Text	Custom	16-bit	Modern	Open-source	C	Floppy	Flappy Bird game in a bootsector
HelenOS	7.9 MB	Text	Custom	32-bit	Modern	Open-source	C	CD	A microkernel-based multiserver OS
Hello v86	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Small bootsector demo for v86
House	1.1 MB	Graphical	Custom	32-bit	Modern	Open-source	Haskell	Floppy	Haskell User's Operating System and Environment
JX	1.3 MB	Text	Custom	32-bit	Modern	Open-source	Java	Floppy	Java-based operating system
KolibriOS	1.3 MB	Graphical	Custom	32-bit	Modern	Open-source	ASM	Floppy	Various apps, games and demos
Little Kernel	0.4 MB	Text	Custom	32-bit	Modern	Open-source	C	Multiboot	An embedded kernel designed for small systems
M/CP	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	The Minimal Control Program
MikeOS	0.2 MB	Graphical	Custom	16-bit	Modern	Open-source	ASM	CD	Contains a FORTH and BASIC interpreter and several games
Mobius	1.3 MB	Graphical	Custom	32-bit	Modern	Open-source	C	Floppy	POSIX and Win32 compatible OS
Mu	0.2 MB	Text	Custom	16-bit	Modern	Open-source	C	HD	Minimal-dependency hobbyist computing stack
NanoShell	3.5 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Multi-tasked 32-bit OS with Win9x-like GUI
NewOS	0.6 MB	Graphical	Custom	32-bit	Modern	Open-source	C++	Floppy	Cross-platform portable OS
Nope OS	92 KB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Simple OS with BASIC interpreter
Oberon	1.6 MB	Graphical	Custom	32-bit	Historic	Open-source	Oberon	HD	Native Oberon 2.3.6
QNX 4.0	51.4 MB	Graphical	Custom	32-bit	Historic	Proprietary	C	Floppy	1999 demo disk
SectorLISP	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Bootstrapping LISP in a Boot Sector
Skift	44 MB	Graphical	Custom	32-bit	Modern	Open-source	C++	CD	A hobby OS built from scratch using C/C++
Snowdrop	0.4 MB	Graphical	Custom	16-bit	Modern	Open-source	ASM	Floppy	16-bit hobby OS with GUI
Sol OS	0.3 MB	Graphical	Custom	32-bit	Modern	Proprietary	ASM	Floppy	Simple graphical OS
Still Alive	10 KB	Text	Custom	32-bit	Modern	Open-source	C	Floppy	Bootable demo that plays "Still Alive" from Portal
T3XFORTH	59 KB	Text	Custom	16-bit	Historic	Open-source	ASM	Floppy	An old-school, plain vanilla FORTH system
TetrOS	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Tetris that fits into the bootsector
ToaruOS	6.3 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	A hobby OS written from scratch
bootBASIC	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	A BASIC in 512 bytes of x86 machine code
Pillman	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	A yellow thing eats pills and is chased by monsters
bootLogo	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Logo language in 508 bytes
bootRogue	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	A roguelike game that fits in a bootsector
dino	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Chrome's t-rex based bootsector game
Invaders	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	Invaders in a bootsector
sanos	0.5 MB	Graphical	Custom	32-bit	Modern	Open-source	C	HD	Minimalistic 32-bit x86 OS
sectorforth	512 B	Text	Custom	16-bit	Modern	Open-source	ASM	Bootsector	16-bit x86 Forth in a bootsector
Dancy	1.3 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Dancy Operating System
CuriOS	6.6 MB	Graphical	Custom	32-bit	Modern	Open-source	C	HD	Simple GUI based OS inspired by AmigaOS
OS64	2.2 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Commodore 64 emulator OS for x86 (slow)
netboot.xyz	1.0 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	Netboot into various operating systems (slow)
SqueakNOS	20 MB	Graphical	Custom	32-bit	Modern	Open-source	C, Smalltalk	CD	Smalltalk as a Standalone OS
Chokanji 4	13+ MB	Graphical	Custom	32-bit	Historic	Proprietary	C	HD	A Japanese OS based on the TRON project
Mojo OS	1.4 MB	Graphical	Custom	32-bit	Modern	Open-source	C++	CD	A simple operating system for the x86 architecture
Vanadium OS	0.7 MB	Graphical	Custom	32-bit	Modern	Open-source	C	CD	A portable, multi-user Unix-like OS
PrettyOS	0.5 MB	Graphical	Custom	32-bit	Modern	Open-source	C++	Floppy	Simple OS for beginners
Asuro	2.1 MB	Graphical	Custom	32-bit	Modern	Open-source	Pascal	CD	Asuro is a hobbyist operating system written in Pascal
XENUS	2.0 MB	Graphical	Custom	32-bit	Modern	Open-source	C	HD	The Vanadium OS predecessor

Visitor Counter

Best Viewed In: