OpenSwiftUI Project
From WASI portability to an OpenSwiftUI Web renderer
OpenSwiftUI's shared display list now feeds a browser-owned Canvas 2D renderer, with color and styled text reaching the Web.
OpenSwiftUI first used wasm32-wasi as a portability check. The August 2026 experiment goes further: Swift performs graph evaluation, layout, and display-list generation, while a JavaScriptKit adapter draws the supported commands into Canvas 2D. The demo now covers color, Text, and TextStyle.
Current scope
The renderer redraws the full canvas and supports only a small command set. Images, arbitrary paths, animation, interaction, incremental updates, accessibility, and browser lifecycle integration are not implemented.
The useful result is the boundary: portable Swift exports render commands, and the browser adapter owns DOM and Canvas APIs. It is an architecture proof, not a finished Web backend.
