Expo

What it does

Expo is a free and open source toolchain built around React Native to help you build native iOS and Android projects using JavaScript and React. 📸 Camera, push notifications, ARKit, and so much more. 🍎 Distribute to app stores. ✈️ Over the air updates to published projects.

Expo is the fastest way to build native apps for iOS, Android, and the web with React.

Build with our CLI and dev tools. Test on simulators made for agents. Ship with the best CI/CD for mobile and learn from every release. 3M+ developers. 50K+ GitHub stars. Trusted in Production By: Build beautiful apps anywhere powered by Expo’s CLI, Skills, and MCP. Test on your device with Expo Go, validate with Simulators, distribute with Launch or Builds. Find what breaks before your users do. Cloud simulators and device infrastructure for your team and your agents. Workflows runs your test suites on every change, starting from ready-made templates. Deploy to TestFlight and the app stores for native releases, Update for everything after, with channels and rollouts you control. See how…from expo.dev

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  Expo 2.02017 · expo.dev · ▲578

  The fastest way to build an iOS and Android app 📱

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  React Native2015 · github.com · ▲362

  Build native mobile experiences with Javascript

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  Bolt + Expo2025 · bolt.new · ▲717

  Turn your ideas into mobile apps without writing any code

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  Expo Sketch2017 · ▲248

  Prototype and deploy React Native code faster than ever

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  React Native Express – Learn React Native Through Interactive Examples2016 · reactnativeexpress.com · ▲496

  The all-in-one guide to React Native

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  React Native Desktop2016 · github.com · ▲545

  Build OS X desktop apps using React Native

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