Dev tools · alternatives · 2026
24 alternatives to Waputer – The WebAssembly Computer
Waputer is an operating system that runs entirely in the browser. When you visit the website at https://waputer.app, a kernel written in JavaScript sets up a filesystem and launches a WebAssembly program, which in turn talks to the kernel to handle the display and input. A purely terminal-based version is at https://waputer.dev. My original intention was to create programs that run in the browser that have a lot more in common with the desktop. The traditional "hello world" program is not really suited for the web. Waputer changes that. The GitHub repo at…
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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Run KolibriOS, Linux or Windows 98 in your browser
2013 · copy.sh · its alternatives →
- 3
Hi HN! I’m Syrus, from the Wasmer team. We just released the new version of WAPM that is an order of magnitude better than the previous one (that we also announced here in HN two years ago! [0]), enabling an incredible experience for using and publishing WebAssembly packages. The tech stack that we are using includes: * Python and Django (for the backend) with Graphene (for the open GraphQL API [1]) and Django Channels with websockets over GraphQL [2] for subscriptions * Next.js [3] with React-Relay [4] and Tailwind.css [5] for the frontend * WebAssembly and Wasmer [6] (for the online shell)…
2022 · wapm.io · its alternatives →
- 4
This is the entire Firefox browser rendering to a element. Gecko, all UI components, and the Spidermonkey JS engine are all compiled and running in WebAssembly. Here are a few things you might find interesting: - This is fully end to end encrypted! We use the WISP protocol for TCP-over-websockets. - There is a novel WASM->JS JIT for experimental site speedup - This port cost over 25k in opus/fable tokens for debugging and JIT research This was just a fun experiment to push the boundaries of WebAssembly. For a more usable "browser in browser" experience, we also built…
Jul 2026 · developer.puter.com · its alternatives →
- 5
Web49: WebAssembly Interpeter. Contribute to FastVM/Web49 development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 6AW
2017 · funkykarts.rocks · its alternatives →
- 7
We’ve reached a major milestone in making any software run with WebAssembly. Thanks to the newest release of Wasmer (4.4) and the Wasmer JS SDK (0.8.0) ...
2024 · wasmer.io · its alternatives →
- 8
Run KolibriOS, Linux or Windows 98 in your browser
2022 · copy.sh · its alternatives →
- 9IW
Hey HN! I've been working on a book about WebAssembly over the last few months, and it's finally available at http://levelupwasm.com! Why a book on WebAssembly you ask? Well... WebAssembly is awesome (obviously ) but it's certainly not the easiest thing to learn. So I wrote this book as a practical intro to using WebAssembly in your web apps. I would appreciate any feedback!
2019 · its alternatives →
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Transputer emulator written in Javascript running my operating system from 1995.
2025 · nanochess.org · its alternatives →
- 11
WebAssembly▲86New binary format for compiling applications for the web
2015 · github.com · its alternatives →
- 12VO
2023 · vimonlineeditor.com · its alternatives →
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Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.
2022 · webvm.io · its alternatives →
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A (WIP) WebAssembly System Interface implementation for Deno - caspervonb/deno-wasi
2020 · github.com · its alternatives →
- 15MI
2025 · carimbo.run · its alternatives →
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In the [first article in this series](<https://wasmer.io/posts/wasm-as-universal-binary-format-part-1-native-executables>) we demonstrated how you can c...
2022 · wasmer.io · its alternatives →
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Run WebAssembly made for outside the browser, inside the browser.
2022 · runno.dev · its alternatives →
- 18SL
2015 · zarkzork.com · its alternatives →
- 19WS
WebAssembly.sh: an online WebAssembly terminal to run WASI modules directly on your browser
2019 · webassembly.sh · its alternatives →
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Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.
2021 · repl.leaningtech.com · its alternatives →
- 21
Built a browser-based FFmpeg editor that runs entirely client-side via WebAssembly. Your files never leave your device -- all processing happens in a Web Worker. Works offline as an installable PWA after first load.
Jun 2026 · github.com · its alternatives →
- 22
🐹🕸️ WebAssembly runtime for Go. Contribute to wasmerio/wasmer-go development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 23
Show HN: TinyWasm - A tiny WebAssembly Runtime written in Rust Hi HN! I'm excited to share TinyWasm (https://github.com/explodingcamera/tinywasm), a WebAssembly Interpreter I developed for my final university project. The main goal of this project was to deepen my understanding of WebAssembly and interpreter design. TinyWasm successfully passes all the official WebAssembly 1.0 tests and also includes features from future proposals such as like bulk memory operations. Initially more of a research project, TinyWasm focuses on simplicity and portability. It has minimal…
2024 · github.com · its alternatives →
- 24DV
Hello there, I’m working on a desktop viewer application for WebAssembly modules for Windows, macOS, and Linux, and I’m looking to have some feedback from real-world use. The application is fairly small, requires no installation for now, and is limited to the minimum functionality, but I have more features in mind for the future. Testers would get a free license including future releases. If you’re interested, drop me a mail at [email protected] with the platform(s) you could test on. It would be helpful if you could tell me about in what capacity do you work with WebAssembly,…
2019 · its alternatives →
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