SurrealDB vs RxDB
A detailed comparison to help you choose between SurrealDB and RxDB.
Quick Verdict
3.9/5
SurrealDB
10 reviews
3.9/5
RxDB
336 reviews
RxDB is rated higher (3.9 vs 3.9). SurrealDB is a multi-model database that handles relational, document, graph, and full-text queries in a single database. Schema-optional, built-in auth, and real-time subscriptions. 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.
SurrealDB Multi-model database with built-in real-time sync and WebSocket support | RxDB Reactive database for JavaScript apps with real-time sync | |
|---|---|---|
| Overview | ||
| Rating | 3.9 (10 reviews) | 3.9 (336 reviews)✓ |
| Pricing model | freemium | free |
| Starting price | Free tier available | Free |
| Best for | Teams building real-time web and mobile applications requiring flexible data models and permission controls without operational complexity of managing multiple databases. | JavaScript/TypeScript developers building offline-capable apps requiring real-time data reactivity across multiple browser contexts. |
| Tags | ||
| Tags | free tieropen sourceself hostableapi access | free tieropen source |
| Visit SurrealDB → | Visit RxDB → | |
SurrealDB
Pros
- + Query multiple data models without context-switching between databases
- + Push real-time data updates to clients via built-in WebSocket support
- + Define row-level permissions directly in the database schema
- + Reduce infrastructure complexity with consolidated data layer
Cons
- - Smaller ecosystem and community compared to PostgreSQL or MongoDB
- - Learning curve for developers unfamiliar with its query syntax and schema approach
- - Limited third-party tool integrations for analytics and BI platforms
RxDB
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
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