"WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications." - https://webassembly.org
- https://github.com/webrcade/webrcade: Multi-game-system app in-browser
- https://system7.app: Mac OS 7 in wasm
- https://copy.sh/v86/: A variety of x86 operating systems running in-browser
- https://github.com/psf/webassembly: "A repo to track the progress of Python on WebAssembly (WASM)"