Kimi K3 built a Windows XP in browser
by boveyking on 7/25/2026, 10:03:22 PM
Comments
by: embedding-shape
It's not a "recreation of Windows XP that runs in the browser" but more like "JavaScript application that looks like Windows XP", before anyone becomes disappointed.<p>Sadly, it doesn't even get the iconic three icons right in the application bars (<a href="https://i.imgur.com/agDlohB.png" rel="nofollow">https://i.imgur.com/agDlohB.png</a>)
7/25/2026, 10:42:51 PM
by: joey_spaztard
The "internet explorer" browser-in-browser on the website somewhat works, but it is connecting to websites from an Alibaba cloud datacenter in China, user-agent claims to be an Apple computer and it is using many different exit ip addresses.<p>Google, gmail, youtube, reddit, yahoo, archive.org etc don't work because they are blocked in China.<p>It appears that this orange hnn website does not work in China either.<p>Some websites are 403 forbidden as they seem to be blocking the exit ip addresses.<p>If you play with this, it may help the enter URLs including the https:// as it does not seem to always properly handle a website upgrading http to https. It may not update the address bar if you get redirected.
7/25/2026, 11:30:14 PM
by: great_psy
Interesting how it is all in mandarin. What I mean by this, is that it was prompted in mandarin to start with.<p>I wonder if the result would be better or worse if prompted exactly the same in English.
7/26/2026, 12:35:47 AM
by: lwansbrough
This is how I started web dev 20 years ago :) Building a Windows XP “clone” portal for my PSP.
7/26/2026, 12:21:18 AM
by: badsectoracula
Looks neat (and despite trying to simulate a WinXP-like UI it relies enough on the native web stuff that Firefox can translate the Chinese to English without breaking much) but some more information would be great: how was it made? E.g. was it just some one-shot "make me a website that looks and functions like WinXP?" or was there more to it?<p>The link at the bottom right does mention that it was "user edited" but that could be some generic message and clicking on the "Kimi Agent" seems to just put me in an empty chatbot.
7/25/2026, 10:43:51 PM
by: luciana1u
the PowerShell freezing after one command is the most authentic part of the simulation
7/26/2026, 12:48:40 AM
by: tristanj
Kimi K3 also built Mac OS 27 in a browser. <a href="https://macos27.kimi.page/" rel="nofollow">https://macos27.kimi.page/</a>
7/26/2026, 12:15:45 AM
by: sheept
I'm surprised it doesn't use proper HTML by default. I wasn't able to tab focus on the Administrator button on the login screen, and it turns out it's because the entire UI is div spam.
7/25/2026, 11:58:13 PM
by: mapontosevenths
The first thing I did was make it load itself inside it's built-in "Internet Explorer". Then I did that in the child copy. Then I did that in the grand-child copy.. Then I got bored.<p>I wonder if it's turtles all the way down?
7/25/2026, 11:51:35 PM
by: nnm
The "power shell" can only run a single command and then stuck.
7/26/2026, 12:26:57 AM
by: alightsoul
Why create a website that looks like an operating system? A lot of people do it. Is it as a demo? There's some art projects that do it.
7/25/2026, 10:51:03 PM
by: cregy
Reminds me of what Fabrice bellard did a few years ago, Linux and windows in JavaScript. <a href="https://bellard.org/jslinux/" rel="nofollow">https://bellard.org/jslinux/</a><p>Or this <a href="https://github.com/copy/v86" rel="nofollow">https://github.com/copy/v86</a>
7/25/2026, 10:20:31 PM
by: boveyking
That is Kimi team that developed it using Kimi K3. A Kimi engineer said he was surprised seeing everyone suddenly using Windows XP.
7/25/2026, 11:05:09 PM
by: paxo
nah poor attempt, I could've prompted a much much better version.
7/26/2026, 12:21:16 AM
by: himata4113
expected a wasm build of windows xp, instead I got powershell installed on windows xp.
7/25/2026, 10:55:18 PM
by: okzgn
I tried to access the linked website, but it didn't open.
7/25/2026, 10:11:32 PM
by:
7/25/2026, 10:03:22 PM
by: ifdefdebug
minesweeper works seemingly until you find some number that don't sum up...
7/25/2026, 10:57:23 PM
by: dofm
Is this why Cursor is running a “Make me a Mac OS in the browser” ad?<p>What an alarmingly pathetic place we have reached.
7/26/2026, 12:01:52 AM
by: 0x000xca0xfe
Just yet another (not very well done) XP lookalike SPA...<p>Since Microsoft has become a proponent for open source and models, a truly impressive demo would now be to use Kimi K3 to reverse the real XP binaries and turn them back into readable and copyright-free source code.
7/26/2026, 12:03:15 AM
by:
7/25/2026, 10:56:48 PM
by: rvz
This isn't remotely what you think it is and it is just a Window XP lookalike.<p>Flagged.
7/25/2026, 10:59:36 PM