Fast AF.RN libraries, a desktop framework, apps.

Explore Legend

Open-source libraries

For React and React Native, on npm.

Legend List

Fast, flexible lists for React and React Native.

@legendapp/list

Legend State

Reactive state, persistence, and sync.

@legendapp/state

Legend Motion

Simple animations for React Native.

@legendapp/motion

Spark

A framework for native desktop apps in React Native.

Legend Spark

React Native, meet the desktop.

Build native Mac apps with React Native and Expo Desktop. Screens use React Native's native renderer, JavaScript runs in Hermes, and one package brings real windows, menus, dialogs, and files.

npm create @legendapp/spark@next MyApp

@legendapp/spark/…

windows
menus
context-menu
shortcuts
global-shortcuts
dialogs
files
settings
secure-storage
clipboard
drag-drop
notifications
tray
sqlite
webview
updates

Explore Spark GitHub

App.tsx

import { AppRegistry, Text } from 'react-native'
import { createMenu } from '@legendapp/spark/menus'
import { openWindow } from '@legendapp/spark/windows'

AppRegistry.registerComponent('Inspector', () => () => <Text>Inspector</Text>)

createMenu({
  id: 'editor',
  items: [{
    type: 'submenu', id: 'view', label: 'View',
    items: [{ type: 'action', id: 'inspector',
              label: 'Show Inspector', shortcut: 'CmdOrCtrl+I' }],
  }],
  onAction: ({ itemId }) => {
    if (itemId === 'inspector') {
      // A second native window, rendering a React Native root
      openWindow({
        id: 'inspector',
        component: 'Inspector',
        title: 'Inspector',
        size: { width: 480, height: 640 },
      })
    }
  },
}).catch(console.error)

A native menu item that opens a second window rendering a React Native root.

01
Spark Runner
A prebuilt development app. Run your project without compiling native code; edits use Fast Refresh.
02
Custom development build
Add native modules or app-specific native configuration. JavaScript still reloads with Fast Refresh.
03
Standalone app
A .app with embedded JavaScript that runs without Metro. Sign and notarize it with your Developer ID.

Not ready for production. macOS 14+ on Apple Silicon is the primary target, built on Expo SDK 54 and React Native 0.81. Intel and Windows builds still need validation.