Dev tools · alternatives · 2026
24 alternatives to WebOS
A full operating system in 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.
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exaequOS, your browser is your computer
2023 · exaequos.com · its alternatives →
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0xWebOS openOS
2025 · programwebos.netlify.app · its alternatives →
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Neverinstall 2.0▲368Your browser is the new operating system
2022 · neverinstall.com · its alternatives →
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Web Components to turn your web app into a fake operating system - victorqribeiro/fos
2019 · github.com · its alternatives →
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Run KolibriOS, Linux or Windows 98 in your browser
2016 · copy.sh · its alternatives →
- 12
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 →
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2016 · github.com · its alternatives →
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A design system for building faithful recreations of the Windows 7 UI.
2025 · khang-nd.github.io · its alternatives →
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2013 · blog.grunseid.com · its alternatives →
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Move beyond the browser - The operating system for the web!
2023 · qebot.com · its alternatives →
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Hargun's MacOS▲132A fully interactive, Mac-like experience directly in browser
Nov 2025 · hargunpreet.vercel.app · its alternatives →
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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 →
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Zylitics▲77Zero config browser based testing platform for web apps
2021 · app.outomated.com · its alternatives →
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Not really an oprating system, Just a pile of javascript pretending to be a Desktop Environment - Lerc/notanos
2013 · github.com · its alternatives →
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Cato▲187Instant Spotlight-like search for your web browser.
2017 · chromewebstore.google.com · its alternatives →
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An operating system written in JavaScript. Contribute to haileys/jsos development by creating an account on GitHub.
2012 · github.com · its alternatives →
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browserless.io▲143The full-code, no-ops tool for browser automation
2023 · browserless.io · 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 →