Life & fun · alternatives · 2026

24 alternatives to A WebAssembly System Interface Implementation for Deno

A (WIP) WebAssembly System Interface implementation for Deno - caspervonb/deno-wasi

This project provides a WebAssembly System Interface implementation for Deno, enabling WebAssembly modules to interact with system-level functionality. It allows developers to run compiled WebAssembly code within… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A WebAssembly System Interface Implementation for Deno launched in 2020; newer entries below may have overtaken it.

1
WebAssembly System Interface for Deno has been merged into Deno▲48
2020 · deno.land · its alternatives →
2
deco.cx 2.0▲1,078
Build web apps 10x faster with Deno, JSX, TS & Tailwind
2024 · decocms.com · its alternatives →
3
Firefox in WebAssembly▲273
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 →
4
WebAssembly▲86
New binary format for compiling applications for the web
2015 · github.com · its alternatives →
5
I wrote a WebAssembly Interpreter and Toolkit in C▲105
Web49: WebAssembly Interpeter. Contribute to FastVM/Web49 development by creating an account on GitHub.
2023 · github.com · its alternatives →
6IW
I wrote a book about WebAssembly▲410
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 →
7
WAPM – WebAssembly Package Manager▲186
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 →
8
A an R7RS Scheme Implementation in WebAssembly▲84
An R7RS Scheme implemented in WebAssembly . Contribute to PollRobots/scheme development by creating an account on GitHub.
2022 · github.com · its alternatives →
9
I built a WASI playground for running CLI binaries in the browser▲115
Run WebAssembly made for outside the browser, inside the browser.
2022 · runno.dev · its alternatives →
10AW
A WebAssembly game demo▲251
2017 · funkykarts.rocks · its alternatives →
11
Wrote a tiny WebAssembly (wat2wasm) compiler in Go▲75
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 →
12
Kyushu – A self-hostable WASM sandbox for JavaScript workers▲89
A self-hostable Wasm sandbox for JavaScript workers.
Jun 2026 · kyushu.dev · its alternatives →
13
Percy – A Rust and WebAssembly isomorphic virtual DOM implementation▲234
Build frontend browser apps with Rust + WebAssembly. Supports server side rendering. - chinedufn/percy
2018 · github.com · its alternatives →
14
Create Native Desktop Apps from WebAssembly▲47
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 →
15
Execute JavaScript in a WebAssembly QuickJS sandbox▲206
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 →
16
Sandboxing untrusted code using WebAssembly▲76
Hi everyone, I built a runtime to isolate untrusted code using wasm sandboxes. Basically, it protects your host system from problems that untrusted code can cause. We’ve had a great discussion about sandboxing in Python lately that elaborates a bit more on the problem [1]. In TypeScript, wasm integration is even more natural thanks to the close proximity between both ecosystems. The core is built in Rust. On top of that, I use WASI 0.2 via wasmtime and the component model, along with custom SDKs that keep things as idiomatic as possible. For example, in Python we have a simple decorator:…
Feb 2026 · github.com · its alternatives →
17
Asmble – Compile WebAssembly to the JVM▲49
Compile WebAssembly to JVM and other WASM tools. Contribute to cretz/asmble development by creating an account on GitHub.
2017 · github.com · its alternatives →
18
TinyWasm – A tiny WebAssembly Runtime written in Rust▲172
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 →
19
Wasmer – A Go library for executing WebAssembly binaries▲44
🐹🕸️ WebAssembly runtime for Go. Contribute to wasmerio/wasmer-go development by creating an account on GitHub.
2019 · github.com · its alternatives →
20
Compiling C in the browser using WebAssembly▲174
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 →
21
WebAssembly System Interface (WASI) with Sockets for Go▲9
Go v1.21, scheduled for release in August 2023, adds experimental support for the WebAssembly System Interface (WASI). It'll be possible to natively compile server-side WebAssembly applications with Go, making Go a first-class citizen along with C/C++, Rust and Zig. GOOS=wasip1 GOARCH=wasm go build ... WASI is still in preview and is missing some key features, e.g. the ability to create sockets. Some WebAssembly runtimes have taken the initiative to extend the WASI preview, enabling a wider range of applications to run as WebAssembly modules. Today, we're open sourcing our WASI library…
2023 · github.com · its alternatives →
22
Second State Serverless FaaS▲92
High-performance serverless functions for Rust & WebAssembly
2020 · secondstate.io · its alternatives →
23CL
Common Lisp running natively over WebAssembly for the first time▲97
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 →
24
Talos – Open-source WASM interpreter for Lean▲106
At Cajal (YC W26) we’re excited to share Talos (https://github.com/cajal-technologies/talos), an open source framework for formal verification of WebAssembly modules in Lean. AI is now writing tons of the code that gets pushed to production. As code generation gets cheaper, verification becomes the bottleneck. We believe in a future where every piece of software comes with a mathematical proof that it does what its author intended - in doing so, eliminating many classes of exploits. Talos is part of the foundation for that. Talos provides a Wasm interpreter optimized for…
Jun 2026 · github.com · its alternatives →

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