Skip to content
Switch branches/tags


Failed to load latest commit information.

WebAssembly from Scratch: From FizzBuzz to DooM

Exploring WebAssembly from scratch from a backend-person-point-of-view. A story in four acts.

Welcome to my journey where I will explore some WebAssembly. We will start from scratch. My goal is to look at everything bottom-up, without much magic tooling or frameworks on our way. In this article, I prefer to build everything as much from scratch as possible.

Non-goal: We will not implement our own WebAssembly interpreter or runtime, but use existing ones, e.g., wabt or the Chrome and Firefox browsers.

Demo at, deployed from (Part 3) via GitHub Actions to GitHub Pages.

Play doom at, deployed from (Part 4) via GitHub Actions to GitHub Pages..