RxDB vs CockroachDB

A detailed comparison to help you choose between RxDB and CockroachDB.

Quick Verdict

3.9/5

RxDB

336 reviews

4.4/5

CockroachDB

357 reviews

CockroachDB is rated higher (4.4 vs 3.9). 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. CockroachDB is a distributed SQL database built to survive datacenter failures. Postgres-compatible, strong consistency, and automatic scaling across regions. Serverless and dedicated options.

	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

View full RxDBreview →

CockroachDB

Pros

+ Survives datacenter failures by design
+ Postgres-compatible SQL
+ Automatic geographic distribution

Cons

- More complex than standard Postgres
- Free tier limits apply

View full CockroachDBreview →

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