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ReactNative.run

Provides a browser-based Metro-like bundler to write, bundle, and preview React Native apps instantly with HMR and npm support

The product is a browser-based bundler that lets users write, bundle, and preview React Native apps instantly without local setup. It addresses the need to run Metro-like bundling, hot module replacement, and npm package handling entirely client-side. It is for software developers and teams building React Native apps who want to prototype or test without Xcode or Android Studio. Compared to server-side alternatives such as Expo Snack and CodeSandbox, it runs bundling client-side in a Web Worker with full HMR and Expo Router support.

Key features

  • Write and preview React Native in browser
  • Zero setup in Web Worker
  • Hot Module Replacement with React Refresh
  • Expo Router file-based routing
  • Dynamic route addition via HMR
  • In-browser API Routes via fetch interception
  • On-demand any npm package bundling
  • ESM package server with caching
  • Virtual filesystem and module resolution
  • Sucrase transformation and require rewriting
  • Asset handling
  • Source maps support
  • No social media activity within the last 30 days
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