native-guiA lightweight cross-platform desktop GUI framework for MoonBit

Native window hosts, a self-drawn rendering pipeline, a complete widget set, and full system integration. One MoonBit codebase ships native Windows 🟩 / Linux 🟩 windows, with macOS 🟨 merged into master (real-machine verification in progress). Zero config after moon add.

Package structure

GitHub

Self-drawn widgets, one look everywhere

The library's own rasterizer draws every control, so rendering is identical across platforms; light/dark mode and the system accent color are followed by default, and a theme is a plain value you can override.

Declarative UI with reactive state

Describe the interface as a tree of @widget.Node values and mount it with one mount_window call; keep state in Store / Signal and bound spots refresh themselves.

Desktop-grade system integration

Tray, notifications, native menus, global shortcuts, file dialogs, drag & drop, clipboard, autostart and OS queries sit behind one @sys / @shell facade; the system-probe page shows this machine's real readings item by item.

Content batteries included

20 chart types with a cross-cutting interactive layer, a GFM Markdown view and multi-language code highlighting; the embedded WebView and the audio/video engine live in the optional gui-webview / gui-media modules.

Honest degradation

Every capability family exposes a probe and returns a structured Unsupported / NotFound on environments that lack it, instead of crashing or pretending success.

Pay only for what you import

16 packages in the main module — an unimported package never enters your binary; heavier capabilities live in their own modules, outside the default dependency closure.

Quick start

moon add NoahLiu/native-gui

moonbit

fn main {
  let app = match @ui.mount_window(
    [@ui.text("Hello, MoonBit!", font_size=18.0)],
    title="Hello, MoonBit!",
    width=400,
    height=300,
  ) {
    None => {
      // no window backend or no display service on this platform
      return
    }
    Some(a) => a
  }
  app.run()
}

@ui.* comes from NoahLiu/native-gui/ui — the full package table is in the documentation index.