RxDB
Reactive database for JavaScript apps with real-time sync
RxDB is a real-time, offline-first NoSQL database for JavaScript applications. Works in the browser, Node.js, React Native, and Electron. Syncs with CouchDB, Firestore, and others.
RxDB provides a document-oriented database for JavaScript with real-time reactivity via RxJS observables. Features include offline-first architecture, cross-device synchronization, encryption, and pluggable storage backends (IndexedDB, SQLite, LevelDB). Designed for applications requiring responsive UI updates and reliable offline capability without server dependency.
Pros
- Build reactive queries with RxJS observables for live data updates
- Sync data across tabs, devices, and optional cloud backend
- Work completely offline with automatic conflict resolution
- Use multiple storage engines via plugins for different environments
Cons
- Steeper learning curve for developers unfamiliar with RxJS reactive patterns
- Self-hosted sync server setup required for cross-device features
Best For
JavaScript/TypeScript developers building offline-capable apps requiring real-time data reactivity across multiple browser contexts.
Pricing
Free Forever
- Core features included
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