CockroachDB vs RethinkDB: Which is Better in 2026?
Choosing between CockroachDB and RethinkDB comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: CockroachDB is our overall pick for data & databases workflows. Pick RethinkDB if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
CockroachDB
Distributed SQL database built for cloud
Best for you if:
- • CockroachDB is a distributed SQL database that survives failures and scales horizontally
- • It provides PostgreSQL compatibility with automatic sharding and multi-region deployment
RethinkDB
Real-time database for modern apps
Best for you if:
- • You need something completely free
- • RethinkDB is a real-time document database with push-based architecture
- • It pushes changes to applications in real-time for live updates
| At a Glance |  CockroachDB |  RethinkDB |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Data & Databases | Data & Databases |
Rating | 4.3/5 | 3.6/5 |
Free plan | Yes | Yes |
Choose CockroachDB or RethinkDB?
Choose CockroachDB if
Distributed SQL database built for cloud
- Distributed SQL
- PostgreSQL compatible
- Multi-region
Choose RethinkDB if
Real-time database for modern apps
- Real-time database
- Good for live updates
- Open source
- You want a fully free tool (CockroachDB requires payment)
| Feature | CockroachDB | RethinkDB |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | ★4.3/5 29 reviews | ★3.6/5 17 reviews |
| Categories | Data & DatabasesCloud & Infrastructure | Data & DatabasesWebSocket Tools |
In-Depth Analysis
CockroachDB
Distributed SQL database built for cloud
Strengths
- +Distributed SQL
- +PostgreSQL compatible
- +Multi-region
- +Strong consistency
- +Good scaling
Weaknesses
- -Complex operations
- -Expensive at scale
- -Learning curve
- -Latency vs single-node
- -Specific use cases
Key features
RethinkDB
Real-time database for modern apps
Strengths
- +Real-time database
- +Good for live updates
- +Open source
- +Good query language
- +Push architecture
Weaknesses
- -Less popular now
- -Company dissolved
- -Community smaller
- -Production concerns
- -Better alternatives exist
Key features
Pricing: CockroachDB vs RethinkDB
| Plan | CockroachDB | RethinkDB |
|---|---|---|
| Tier 1 | Free Basic | Free Open Source |
| Tier 2 | $0.18 /hour (2 vCPUs) Standard | N/A |
| Tier 3 | $0.6 /hour (4 vCPUs) Advanced | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on CockroachDB pricing and RethinkDB pricing.
Who Should Use What?
On a budget?
RethinkDB is free. CockroachDB is freemium.
Go with: RethinkDB
Want the highest-rated option?
CockroachDB: 4.3/5 (29 reviews). RethinkDB: 3.6/5 (17 reviews).
Go with: CockroachDB
Value user reviews?
CockroachDB: 29 reviews (4.3/5). RethinkDB: 17 reviews (3.6/5).
Go with: CockroachDB
3 Questions to Help You Decide
What's your budget?
CockroachDB is freemium. RethinkDB is free. Go with RethinkDB if free matters most.
What's your use case?
Both are data & databases tools. Compare their specific features to decide.
How important are ratings?
CockroachDB is rated higher: 4.3/5 vs 3.6/5.
Key Takeaways
CockroachDB
- Higher user rating: 4.3/5 vs 3.6/5
- Larger review base (29 reviews)
- Free tier available
- Our pick for this comparison
RethinkDB
- Completely free
The Bottom Line
CockroachDB is our pick. That said, RethinkDB is free, hard to beat on price.
Frequently Asked Questions
Is CockroachDB or RethinkDB better?
CockroachDB is rated in our evaluation. CockroachDB is freemium and RethinkDB is free.
What are CockroachDB and RethinkDB used for?
CockroachDB: Distributed SQL database built for cloud. RethinkDB: Real-time database for modern apps.
What does CockroachDB cost vs RethinkDB?
CockroachDB is freemium (free tier + paid plans). RethinkDB is completely free. Visit their websites for detailed pricing.