TinyWasm – A tiny WebAssembly Runtime written in Rust

In plain words

TinyWasm is a WebAssembly runtime interpreter written in Rust that executes WebAssembly code. It passes all official WebAssembly 1.0 tests and includes features from future proposals like bulk memory operations. Designed for simplicity and portability, it has minimal dependencies, a small codebase, and works in no_std environments. The tool is intended for developers who want to embed WebAssembly execution into other projects or study interpreter design.

written from the facts on this page · September 2026

From the sources

A tiny WebAssembly runtime written in safe Rust. Contribute to explodingcamera/tinywasm development by creating an account on GitHub.

In the maker’s words, at launch

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…

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  TinyWasm2024 · github.com · ▲12

  A tiny WebAssembly Runtime written in Rust

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  Wrote a tiny WebAssembly (wat2wasm) compiler in Go2022 · github.com · ▲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

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• IW
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