leptoskit

leptoskit is a Rust toolkit for building an interface once and rendering it everywhere: Leptos in the browser, and real platform widgets on iOS, Android, macOS, Windows and Linux. No web view, no JS bridge in the native apps.

The same component tree carries its Tailwind classes, so a View().class("gap-4 p-6") lays out on AppKit, UIKit, Android, Win32, GTK and the DOM. Native hosts run the interface as a Wasm guest, which means signed over-the-air interface updates. The new motion API describes movement declaratively too: enter, scroll and timeline poses, which the web renders as CSS and scroll-driven animations, so nothing runs in script.

Around the tree: typed RPC, queries, tables, forms, routing, accessible components, a from-scratch flexbox/grid layout engine, a GPU canvas, a Wasm runtime, code push, and a CLI that plans and applies your infrastructure from leptoskit.toml.

Every screenshot is the same tree committed as real AppKit views and rendered offscreen at 2x.