CockroachDB vs PostgreSQL: Which is Better in 2026?
Choosing between CockroachDB and PostgreSQL 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: PostgreSQL is our overall Data & Databases pick. Pick CockroachDB if you need a free tier to start with.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
CockroachDB
Distributed SQL database built for cloud
Best for you if:
- • You want distributed SQL
PostgreSQL
Advanced open source SQL database
Best for you if:
- • You want a fully free tool (CockroachDB requires payment)
| At a Glance | CockroachDB | PostgreSQL |
|---|---|---|
Starts at | Free Free plan | Free 100% free |
Category | Data & Databases Cloud & Infrastructure | Data & Databases |
Rating | 4.3/5 G2 4.3 29 reviews | 4.5/5 G2 4.4 · Capterra 4.6 1,094 reviews |
Free plan | Yes | Yes |
Watch out for | Request Unit consumption varies dramatically by query complexity. A simple key lookup costs ~1 RU, but a full table scan or complex JOIN can consume thousands of RUs. The 50M free RUs can evaporate quickly with unoptimized queries. | n/a |
Choose CockroachDB or PostgreSQL?
Choose CockroachDB if
- You want distributed SQL
- You want PostgreSQL compatible
Choose PostgreSQL if
- You want a fully free tool (CockroachDB requires payment)
- You want most advanced open-source database
- You want excellent for complex queries and JSON
In-Depth Analysis
CockroachDB
Distributed SQL database built for cloud
CockroachDB offers one of the most compelling free tiers in the database market, 50M Request Units and 10 GiB storage per month with scale-to-zero is enough to run a real production app at low traffic for free.
Watch out
Request Unit consumption varies dramatically by query complexity. A simple key lookup costs ~1 RU, but a full table scan or complex JOIN can consume thousands of RUs. The 50M free RUs can evaporate quickly with unoptimized queries.
Strengths
- Pro: Distributed SQL
- Pro: PostgreSQL compatible
- Pro: Multi-region
- Pro: Strong consistency
- Pro: Good scaling
Weaknesses
- Con: Complex operations
- Con: Expensive at scale
- Con: Learning curve
- Con: Latency vs single-node
- Con: Specific use cases
Key features
PostgreSQL
Advanced open source SQL database
PostgreSQL's pricing, being entirely free and open source, is exceptionally generous and fair compared to any commercial database solution.
Strengths
- Pro: Most advanced open-source database
- Pro: Excellent for complex queries and JSON
- Pro: Strong data integrity and ACID compliance
- Pro: Highly extensible with extensions
- Pro: Large community and ecosystem
Weaknesses
- Con: Can be complex to tune for performance
- Con: Vertical scaling more limited than NoSQL
- Con: Replication setup requires expertise
- Con: Memory-intensive for large datasets
- Con: Less suitable for simple key-value use cases
Key features
Pricing: CockroachDB vs PostgreSQL
| Plan | CockroachDB | PostgreSQL |
|---|---|---|
| Tier 1 | Free Basic | $0 Free |
| 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 PostgreSQL pricing.
Key Takeaways
PostgreSQL
- Higher user rating: 4.5/5 vs 4.3/5
- Larger review base (1,094 reviews)
- Completely free
- Our pick for this comparison
CockroachDB
- Choose if you want distributed SQL database built for cloud
The Bottom Line
PostgreSQL is our overall Data & Databases pick.
Frequently Asked Questions
Is CockroachDB or PostgreSQL better in 2026?
PostgreSQL is our overall Data & Databases pick. Pick CockroachDB for data & databases workflows (main strength: distributed SQL). Pick PostgreSQL for data & databases workflows (main strength: most advanced open-source database).
What are CockroachDB and PostgreSQL used for?
CockroachDB: Distributed SQL database built for cloud. PostgreSQL: Advanced open source SQL database.
What does CockroachDB cost vs PostgreSQL?
CockroachDB's paid plans start at Free (Standard). PostgreSQL is free.
What's the main difference between CockroachDB and PostgreSQL?
CockroachDB's main strength: distributed SQL. PostgreSQL's main strength: most advanced open-source database.