egui is a simple, fast, and highly portable immediate mode GUI library for Rust. egui runs on the web, natively, and in games engine.
Egui REPO: https://github.com/emilk/egui
Sample app native or WASM: https://github.com/fzingg/egui-wasm-demo
Sample app with Tauri: https://github.com/fzingg/tauri-with-egui