Expo is an open-source platform for making universal native apps that run on Android, iOS, and the web. It includes a universal runtime and libraries that let you build native apps by writing React and JavaScript. This repository is where the Expo client software is developed, and includes the client apps, modules, apps, and more. The Expo CLI repository contains the Expo development tools.
Click here to view the Expo Community Guidelines. Thank you for helping keep the Expo community open and welcoming!
? Documentation
? Project Layout
packagesAll the source code for the Unimodules, if you want to edit a library or just see how it works this is where you'll find it.appsThis is where you can find Expo projects which are linked to the development Unimodules. You'll do most of your testing in here.docsThe source code for https://docs.expo.iotemplatesThe template projects you get when you runexpo startreact-native-labThis is our fork ofreact-native. We keep this very close to the upstream but sometimes need to add quick fixes locally before they can land.guidesIn-depth tutorials for our most advanced topics like contributing to the client.androidcontains the Android project.homecontains the JavaScript source code of the app.ioscontains the iOS project.ios/Exponent.xcworkspaceis the Xcode workspace. Always open this instead ofExponent.xcodeprojbecause the workspace also loads the CocoaPods dependencies.tools-publiccontains build and configuration tools.template-filescontains templates for files that require private keys. They are populated using the keys intemplate-files/keys.json.template-files/ios/dependencies.jsonspecifies the CocoaPods dependencies of the app.
? Badges
Let everyone know your app is universal with Expo!
[](https://expo.io/)
[](https://expo.io/)
? Contributing
If you like Expo and want to help make it better then check out our contributing guide! Check out the Expo CLI repo to work on the Expo CLI, and various other universal development tools.
❓ FAQ
If you have questions about Expo and want answers, then check out our Frequently Asked Questions!
If you still have questions you can ask them on our forums or on Twitter @Expo.
? The Team
Curious about who makes Expo? Here are our team members!
License
The Expo source code is made available under the MIT license. Some of the dependencies are licensed differently, with the BSD license, for example.