midReact Native
What is AsyncStorage in React Native?
Updated May 6, 2026
Short answer
AsyncStorage is a simple key-value storage system for persisting data locally.
Deep explanation
AsyncStorage is used for storing small amounts of data like tokens or preferences. It is asynchronous and persists data across app restarts but is not secure or suitable for large datasets.
Real-world example
Storing authentication tokens after login.
Common mistakes
- Using AsyncStorage for sensitive or large data.
Follow-up questions
- Is AsyncStorage secure?
- What alternatives exist?