RxDB for React Native

RxDB works in React Native apps on Android, iOS and the web. Category: Database & Storage. Pricing: open source.

RxDB is a reactive NoSQL database for JavaScript applications including React Native, built on top of PouchDB with RxJS-powered observable queries. It gives you real-time data synchronization, multi-tab support, and a flexible storage layer — all in a single npm package.

By combining offline-first storage with CouchDB-compatible replication, RxDB is particularly powerful for apps that need to sync data across devices and backends while staying fully functional without internet connectivity.

When to use RxDB in a React Native app

1. Go offline-first in your React Native app without rebuilding your data layer. RxDB stores data locally on-device and syncs automatically with CouchDB, PouchDB, or custom backends when the connection returns — giving users a seamless experience with no extra infrastructure to manage.
2. Drive your UI with reactive data streams. RxDB queries return RxJS Observables — subscribe to a collection in your component and the UI updates automatically whenever data changes, locally or from a sync — eliminating manual refetch logic.
3. Choose your storage engine without changing your code. RxDB supports IndexedDB, SQLite, Memory, and more through a swappable adapter system — so you can optimize for performance on each platform without rewriting your data access layer.