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Work · alternatives · 2026

24 alternatives to WebOS

Run OS on your browser!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    WebOS▲10

    A full operating system in your browser

    2025 · webos.ct.ws · its alternatives →

  2. 2

    exaequOS, your browser is your computer

    2023 · exaequos.com · its alternatives →

  3. 3

    0xWebOS openOS

    2025 · programwebos.netlify.app · its alternatives →

  4. 4

    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 · its alternatives →

  5. 5
    SigmaOS▲1,026

    The browser that makes YOU fast

    2021 · sigmaos.com · its alternatives →

  6. 6

    Web Components to turn your web app into a fake operating system - victorqribeiro/fos

    2019 · github.com · its alternatives →

  7. 7

    A fully interactive, Mac-like experience directly in browser

    Nov 2025 · hargunpreet.vercel.app · its alternatives →

  8. 8
    Sava OS▲139

    A desktop interface for your web browser

    2024 · savaos.com · its alternatives →

  9. 9
    Sacred OS▲155

    Retro OS in your browser

    2024 · sacred.neocities.org · its alternatives →

  10. 10

    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 · its alternatives →

  11. 11VM

    2013 · blog.grunseid.com · its alternatives →

  12. 12

    A full web OS running right inside your browser

    Aug 2026 · its alternatives →

  13. 13

    wagmiOS- built for your browser

    2022 · wagmios.vercel.app · its alternatives →

  14. 14

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

    2018 · github.com · its alternatives →

  15. 15

    Run KolibriOS, Linux or Windows 98 in your browser

    2016 · copy.sh · its alternatives →

  16. 16

    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 · its alternatives →

  17. 17

    Not really an oprating system, Just a pile of javascript pretending to be a Desktop Environment - Lerc/notanos

    2013 · github.com · its alternatives →

  18. 18

    Move beyond the browser - The operating system for the web!

    2023 · qebot.com · its alternatives →

  19. 19

    An application innovation platform delivering a comprehensive experience with tools to empower organizations to modernize and build new applications, accelerate AI adoption, and fuel growth.

    2013 · coreos.com · its alternatives →

  20. 20

    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 · its alternatives →

  21. 21
  22. 22

    A design system for building faithful recreations of the Windows 7 UI.

    2025 · khang-nd.github.io · its alternatives →

  23. 23

    An operating system written in JavaScript. Contribute to haileys/jsos development by creating an account on GitHub.

    2012 · github.com · its alternatives →

  24. 24

    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 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →