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Alternatives

Products that do what WebOS does

Run OS on your browser!

  1. 1
    WebOS10

    A full operating system in your browser

    2025

  2. 2EA
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  4. 4IW

    https://lisagui.com/info.html This is a web OS I wrote in vanilla JS that looks like the Apple Lisa Office System (1983-85), with other contemporaneous influences and additional improvements and features. It's currently in alpha and isn't remotely bug free. I had been holding off on posting this here until it was somewhat presentable and useful. Please note; the Lisa conforms more literally to the desktop metaphor than most modern GUIs - some of the important differences are mentioned in the readme. This is a complete recreation of the UI in JS; it all renders to a single…

    2025 · alpha.lisagui.com

  5. 5
    SigmaOS1,026

    The browser that makes YOU fast

    2021 · sigmaos.com

  6. 6

    A fully interactive, Mac-like experience directly in browser

    Nov 2025 · hargunpreet.vercel.app

  7. 7BA
  8. 8
    Sava OS139

    A desktop interface for your web browser

    2024

  9. 9
    Sacred OS155

    Retro OS in your browser

    2024

  10. 10BC

    Hey HN! We're Nithin and Nikhil, twin brothers building BrowserOS (YC S24). We're an open-source, privacy-first alternative to the AI browsers from big labs. The big differentiator: on BrowserOS you can use local LLMs or BYOK and run the agent entirely on the client side, so your company/sensitive data stays on your machine! Today we're launching filesystem access... just like Claude Cowork, our browser agent can read files, write files, run shell commands! But honestly, we didn't plan for this. It turns out the privacy decision we made 9 months ago accidentally positioned us for this…

    Jan 2026 · github.com

  11. 11

    A full web OS running right inside your browser

    8d ago

  12. 12

    Windows 95 app that runs on macOS, Windows, and Linux

    2018

  13. 13W7

    2025 · khang-nd.github.io

  14. 14

    Demo: https://dustinbrett.com Hey HN! I've been building my passion project daedalOS for over 4 years now. The original idea was to give visitors to my website the experience as if they had remotely connected to my personal machine. To do this I decided I would attempt to recreate as much of the functionality as possible. My hope is to keep working on this project for the rest of my life and continue to evolve it's capabilities as technologies progress. Thanks for checking it out!

    2025 · github.com

  15. 15RT

    TempleOS is an experimental OS designed to be simple and self-hosted with a JIT compiler. I was mesmerized by it but didn't like the hassle of using virtual machines to boot it up and move files around from the virtual drive. My project lets you run TempleOS as an app of some sort instead of using a virtual machine to run it - this brings a lot of benefits like speed, seamless filesystem integration (virtual machine development with stock TempleOS is really a pain.), command-line mode where you can code in HolyC on the command line instead of TempleOS' GUI. Its user-space nature lets it do…

    2024 · github.com

  16. 16MA
  17. 17AP
  18. 18FO
  19. 19CA
  20. 20MC

    Hello HN! I want to show you MyNixOS.com - a website I've been working on this year to make it easy to create and share Nix and NixOS configurations. Nix is a powerful tool to deploy software in a reproducible way, and with NixOS you can control your whole operating system through a declarative configuration. Starting out with Nix was exciting, but it definitely had a challenging learning curve. This made me start building a website focused on making it easier to create and share Nix flakes, which are the core unit of software deployment in Nix. Using the website, you can create flakes…

    2022 · mynixos.com

  21. 21

    Your browser is the new operating system

    2022

  22. 22

    A Chromium-based browser for Web developers

    2016

  23. 23
    MeowOS6

    Kyrkat89/meowos: umm...

    Oct 2025

  24. 24DO

    Hi HN, I've always loved the aesthetic, quirks, and concepts of Plan9, and I wanted to see how far I could vibe-code a web desktop/OS that resembled it. The result is DWS OS. My goal was to reach a point where I could build "userspace" apps for this OS, in the OS. DWS OS has a virtual filesystem, an approximation of the ACME editor, file browser, internet browser (just an iframe for fun), and a few other apps to discover. The environment supports uploading and downloading data from the virtual filesystem, along with support for JavaScript programming within ACME and an API for building…

    Sep 2025 · dws.rip

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