react-native-keychain is a React Native library that provides access to the Keychain on iOS and Keystore on Android for securely storing sensitive credentials.
The library solves the problem of safely persisting passwords, tokens, and other sensitive data in mobile applications by leveraging the native secure storage mechanisms available on each platform. On iOS it uses the Keychain, while on Android it uses the Keystore. This approach ensures that credentials are encrypted and protected by the device's security features rather than stored in plain text or in application memory.
Developers building React Native applications that need to store authentication tokens, passwords, or other secrets should consider this library. It suits any project requiring credential persistence across app sessions, particularly those handling user authentication or API tokens. The library supports biometric authentication through FaceID on iOS, which can be enabled by adding a usage description to the app's configuration. Installation is straightforward, requiring the package to be added via yarn and iOS dependencies to be installed via CocoaPods.
The project maintains active development with multiple maintainers sharing responsibility for the codebase. The library is widely adopted in production applications, including several high-profile cryptocurrency and blockchain projects. Documentation is maintained on a dedicated website separate from the repository, and release information is tracked through the GitHub Releases page.
