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Top 23 Rust WASM Projects
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Yew is one of the most popular Rust frameworks (it currently has 30.5k stars on GitHub) for building modern web applications.
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Project mention: Dioxus: Rust framework for building fullstack web, desktop, and mobile apps | news.ycombinator.com | 2025-06-21
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Paste this into the Playground (try it here). You’ll get something like:
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Project mention: IoT Architectures Under Pressure: hosting a portable firmware (Part 3) | dev.to | 2025-05-16
Several WASM runtimes are available to execute our code. In this example, we'll use Wasmer, though other options exist. If we compile AOT (Ahead-of-Time), we don’t even need a runtime at all!
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slint
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
Project mention: Qt's New Bridging Technology – Looking Back to Move Forward | news.ycombinator.com | 2025-05-27I actually wrote Rust bindings for Qt a while back: https://github.com/woboq/qmetaobject-rs/. I'm curious to see how Qt's own take with Qt Bridges will work out. That said, I’ve since moved on and now work on Slint [https://github.com/slint-ui/slint]
Slint was created with the same idea as what drives "Qt Bridges". We made a UI toolkit that is language-agnostic from the start. Slint uses its own UI language (inspired by QML), and gives you first-class, idiomatic APIs in Rust, C++, Pyhton, and JavaScript. And a clean separation between UI and business logic.
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Project mention: Show HN: Munal OS: a graphical experimental OS with WASM sandboxing | news.ycombinator.com | 2025-06-09
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burn
Burn is a next generation Deep Learning Framework that doesn't compromise on flexibility, efficiency and portability.
Project mention: Burn: The Next-Gen Deep Learning Framework That Will Blow Your Mind | dev.to | 2025-05-21View the Project on GitHub
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Project mention: Generate impressive-looking terminal output, look busy when stakeholders walk by | news.ycombinator.com | 2025-03-15
This is cool! I once made a project very much like this: https://github.com/svenstaro/genact
Check it out if you like this kind of thing.
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> I couldn't figure out a way to to get emscripten wasm code to play nice with wasm32-unknown-unknown
There is good news there, some people plan to work on making Emscripten and Rust work well in Wasm:
https://github.com/rustwasm/wasm-bindgen/pull/4014#issuecomm...
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Is this an experimental only JS engine or do you aim to implement the entire ECMAscript specification?
I have been following the Rust Boa project, but I think that it isn't production ready, yet. https://github.com/boa-dev/boa
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> Is this something Flutter doesn't do?
Flutter does do this (at least to some extent) on Desktop/Mobile. It attempts to create a hidden DOM tree for accessibility on web. Which generally doesn't seem to be thought to work very well.
> One of the most jarring experiences I have with Flutter Desktop was it lacked MacOS Emacs-style key bindings for text editing (ctrl-a, ctrl-e, etc.). Not sure if Dioxus solved this?
Ah, we're nearly there on that one. We have a PR [0] accepted into Winit (the underlying windowing library we use) which will allow us to access those events. We're just waiting on Winit to do a new release and then we can integrate it into Dioxus.
[0]: https://github.com/rust-windowing/winit/pull/3824)
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Project mention: Building a Self-hosted IAM Platform to Add SSO to My Home Lab | dev.to | 2025-05-19
The architecture of an IAM platform is made up of 3 layers: the base infrastructure layer, the application layer, and the connection layer. The base layer is composed of a directory store, a repository for identity information, and synchronization, the ability for multiple directories to share identity information with each other. There were many self-hosted LDAP directory servers available, like the 389 Directory Server and FreeIPA, but I chose LLDAP to be the centralized directory store because of its simple configuration and low resource usage.
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extism
The framework for building with WebAssembly (wasm). Easily & securely load wasm modules, move data, call functions, and build extensible apps.
you should check out the Extism[0] project and the Elixir SDK[1]. This would allow you to write the core services, routing, message passing, etc in Elixir, and leverage all the BEAM/OTP have to offer, and then embed "agents" written in other languages which are small Wasm modules that act like in-process plugins.
[0]: https://github.com/extism/extism
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The above snippet of code will generate a boilerplate code that you can use as a starting template for your Yew app. The reason we installed Trunk is because Yew uses a Trunk bundler to serve HTML for the web.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Rust WASM discussion
Rust WASM related posts
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Getting Your Feet Rust-y: A Beginner’s Guide to Rust for Polkadot Devs”
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K23 – Experimental WASM Microkernel Operating System
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Show HN: Munal OS: a graphical experimental OS with WASM sandboxing
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Exploring the top Rust web frameworks
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👨🏻💻 Hacking Dioxus: How Vibe Coding Is Destroying Software Engineering
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Lune: Standalone Luau Runtime
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Ask HN: State of WASI
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A note from our sponsor - SaaSHub
www.saashub.com | 23 Jun 2025
Index
What are some of the best open-source WASM projects in Rust? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | yew | 31,681 |
| 2 | dioxus | 28,027 |
| 3 | egui | 25,173 |
| 4 | tree-sitter | 20,990 |
| 5 | RustPython | 20,186 |
| 6 | wasmer | 19,818 |
| 7 | slint | 19,483 |
| 8 | wasmtime | 16,520 |
| 9 | burn | 11,369 |
| 10 | genact | 10,783 |
| 11 | min-sized-rust | 9,020 |
| 12 | wasm-bindgen | 8,262 |
| 13 | wasm-pack | 6,693 |
| 14 | boa | 5,684 |
| 15 | winit | 5,369 |
| 16 | lldap | 5,114 |
| 17 | extism | 5,032 |
| 18 | lunatic | 4,741 |
| 19 | Rhai | 4,657 |
| 20 | black-hat-rust | 4,048 |
| 21 | trunk | 3,894 |
| 22 | Ambient | 3,858 |
| 23 | Seed | 3,841 |
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