RxDB vs CockroachDB
A detailed comparison to help you choose between RxDB and CockroachDB.
RxDB Reactive database for JavaScript apps with real-time sync | CockroachDB Distributed SQL database that survives failures | |
|---|---|---|
| Overview | ||
| Rating | 3.9 (336 reviews) | 4.4 (357 reviews)✓ |
| Pricing model | free | freemium |
| Starting price | Free | Free tier available |
| Best for | JavaScript/TypeScript developers building offline-capable apps requiring real-time data reactivity across multiple browser contexts. | Applications requiring high availability across multiple regions where database availability is mission-critical |
| Tags | ||
| Tags | free tieropen source | free tiermanaged optionbackups includedeu datacenterus datacenterapac datacenterapi access |
| Visit RxDB → | Visit CockroachDB → | |
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
CockroachDB
Pros
- + Survives datacenter failures by design
- + Postgres-compatible SQL
- + Automatic geographic distribution
Cons
- - More complex than standard Postgres
- - Free tier limits apply
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