If you are a fan of websites, web apps and portfolios which resemble desktop operating systems here is an awesome curated list!

• Contributions are more than welcome. Please see contribution guide.
• To know more about web desktops you should read up the Wikipedia article here.
• Hacker News discussion available here

Site name	Source code
WorldWideWeb	n/a
Poolsuite	n/a
Nightwave Plaza	n/a
Ash Kyd	Available
Cyberspace & Time	n/a
WWWTXT	n/a
Windows 93	n/a
Artur Bień	Available
The Restart Page	n/a
Webamp	Available
It is as if you were doing work	Available
frankenSim	n/a
Jack Kim	n/a
Geek Prank	n/a
Eric Bernacchi	n/a
OS.js Demonstration	Available
Mariano Pascual	n/a
AfterStep WM	n/a
98.js	Available
Broken Reality	n/a
WindowMaker	n/a
Whimsy Space	Available
WinXP	Available
Denzel Curry x Kenny Beats	n/a
zach.dev // Software & Adventure	n/a
www.chiptune.com	n/a
Virtual Desktop	n/a
mattOS	n/a
waller.is	n/a
Windows 98 Icon Viewer	n/a
Jurassic Systems	Available
The Macpaint Gallery	n/a
N10.AS RADIO	n/a
Rahul.io	Available
EmuOS	Available
AaronOS	Available
CloudDesk	n/a
Windows 98 -- Packard Belle	Available
vue win3.1	Available
Welcome to Agora Road	n/a
Minesweeper	Available
Gamithra OS	n/a
maple's website!	n/a
baz's PC	n/a
TrueSchool Ascii	n/a
Victor Ribeiro	Available
Nirrius Creative Studio	n/a
Hillary Churchill - Copywriter	n/a
Bill's World Wide Boutique	n/a
NyjaOS	n/a
Windows 95 Replica	n/a
The Indie Web	Available
hannah blair | developer & designer	n/a
98 KAGE	Available
erdOS	n/a
Windows 1.0	n/a
glenda.party	n/a
Maxime Elkael - portfolio	Available
VirusvAV	n/a
some kind of blog	n/a
Repeater	n/a
WuerfelDev	n/a
Glass Animals OPEN SOURCE	n/a
Make WordArt	n/a
ytOS	n/a
Windows XP	n/a
56k-modem	n/a
RACER TRASH	n/a
CutOut Fest	n/a
Vuindows	Available
Gustavo Chico	n/a
digital-r41n	n/a
𝕂𝕣𝕪𝕡𝕥 𝕆𝕊	n/a
Online Hacker Simulator	n/a
Tetrageddon Games	n/a
AWGE - Forum	n/a
My Second PC	Available
ToxicCode.com	n/a
HyNET Geocity	n/a
Unremarkable Garden	n/a
FLEXEDUPSHAWTY.COM	n/a
aconfuseddragon's art and nostalgia corner	n/a
RaccOS 9	n/a
x	Available
MSOS Concept	n/a
Novov - Software I use	n/a
Team3D	n/a
Day Job	n/a
PUBLIC DOMAIN	n/a
WE=LINK	n/a
Thoughts On Glitch[Art]v2.0	Available
Big Desk Energy	n/a
Github95	Available
An Ordinary Portfolio Page of Derya	Available
linuxWeb	Available
Yahya J. Aifit	n/a
jQuery Desktop	Available
Windows 96	n/a
The Coding Forge	Available
Vivek Patel - Computer Science Student	Available
Winampify	Available
Try Andy's Desk	n/a
tildeOS	n/a
Jack Adam	n/a
Xiaohan Zou's Portfolio	Available
macOS in Preact	Available
Deepin Linux	Available
Win7	Available
Heather Vandervecht	Available
Tony Dinh	Available
Fizzygum	Available
RexOS	n/a
Joeyonng's Backyard	Available
Windows 11 in React	Available
Win7 Simu	n/a
Rimet Desktop	n/a
AtheOS	Available
NeXT	n/a
Hunter Hodnett XP	Available

Here are the websites that were previously on the list but changed design :(

A snapshot of the Web Desktop version should still be available on archive.org

• Simone syx Marzulli