Life & fun · alternatives · 2026
24 alternatives to Firefox in WebAssembly
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…
Firefox in WebAssembly is the complete Firefox browser compiled to run inside a web page's canvas element, including the Gecko engine, UI components, and SpiderMonkey JavaScript engine. All rendering happens in… 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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This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…
2024 · github.com · its alternatives →
- 2
As a personal project I wrote a really tiny Wat 2 Wasm compiler in Go. Mainly for demonstrative and educational purposes. It was tough: I didn't know anything about WebAssembly internals and I'm a newbie with Go... so I tried to document it as much as I could for anyone that would like to approach the quest in the future! It misses a lot of features (that will be gradually implemented). Any feedback is welcomed!! Demo: https://luna-demo.vercel.app
2022 · github.com · its alternatives →
- 3
A (WIP) WebAssembly System Interface implementation for Deno - caspervonb/deno-wasi
2020 · github.com · its alternatives →
- 4
A self-hostable Wasm sandbox for JavaScript workers.
Jun 2026 · kyushu.dev · its alternatives →
- 5IW
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 →
- 6
JPEG XL decoder in JavaScript using WebAssembly (WASM) - niutech/jxl.js
2022 · github.com · its alternatives →
- 7
Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.
2021 · repl.leaningtech.com · its alternatives →
- 8
Web49: WebAssembly Interpeter. Contribute to FastVM/Web49 development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 9
I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.
2024 · github.com · its alternatives →
- 10AW
2017 · funkykarts.rocks · its alternatives →
- 11
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 →
- 12
Run WebAssembly made for outside the browser, inside the browser.
2022 · runno.dev · its alternatives →
- 13
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 →
- 14
WebAssembly▲86New binary format for compiling applications for the web
2015 · github.com · its alternatives →
- 15
Absurdly cursed mono webassembly hacks, and a journey to create a project that definitely shouldn
2025 · velzie.rip · its alternatives →
- 16
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 →
- 17
Run KolibriOS, Linux or Windows 98 in your browser
2022 · copy.sh · its alternatives →
- 18CL
A month or so ago, I ported a Common Lisp implementation (npt) to WebAssembly to make a silly blog post, because I was bored and have a lot of time on my hands to waste with things like this (I don't have a job, and because I have next to no experience, these meaningless, silly projects tend to fill what time I do have). This is significant as it's the first time Common Lisp in particular has ever been hosted on it; wasm has a few poor decisions in its design that make it less-than-conducive to being a target for Common Lisp, and a lot of the more interesting implementations require an…
2022 · soi-disant.srht.site · its alternatives →
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A WebAssembly runtime embedded in Godot game engine projects. Interact with Wasm modules from GDScript. Accessing Wasm modules via GDScript provides the following benefits. - Sandboxed environment allows safely loading zero-trust mods/extensions to a project. - Single target means that Wasm modules can be built from any language e.g. Rust, Go, AssemblyScript and the single binary can be run on all platforms. - Fast execution compared to GDScript allows for offloading compute-heavy operations or running bots/mods/etc. at high FPS. This might be useful for loading mods, bot AI,…
2023 · github.com · its alternatives →
- 21
Build frontend browser apps with Rust + WebAssembly. Supports server side rendering. - chinedufn/percy
2018 · github.com · its alternatives →
- 22
There are lots of solutions already, but most solutions have too many ads or they process on server(privacy concern). Webutils convert all images on client using webassembly.
2022 · webutils.app · its alternatives →
- 23
🐹🕸️ WebAssembly runtime for Go. Contribute to wasmerio/wasmer-go development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 24
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 →
Also compare
- Execute JavaScript in a WebAssembly QuickJS sandbox alternatives
- Wrote a tiny WebAssembly (wat2wasm) compiler in Go alternatives
- A WebAssembly System Interface Implementation for Deno alternatives
- Kyushu – A self-hostable WASM sandbox for JavaScript workers alternatives
- I wrote a book about WebAssembly alternatives
- JXL.js – JPEG XL Decoder in JavaScript Using WebAssembly in Web Worker alternatives
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 →