PostgreSQL vs Amazon DynamoDB: Which Should You Choose in 2026?
Choosing between PostgreSQL and Amazon DynamoDB 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.
By Toolradar Team · Last updated May 6, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
PostgreSQL
Advanced open source SQL database
Best for you if:
- 0
- • You need something completely free
- • PostgreSQL is an advanced open-source relational database
- • It provides extensibility, standards compliance, and enterprise features
Amazon DynamoDB
Serverless NoSQL database with single-digit millisecond latency
Best for you if:
- 0
- • Amazon DynamoDB is a serverless NoSQL database designed for applications requiring single-digit millisecond latency
- • It scales automatically to handle any workload with built-in security and backup capabilities
| At a Glance |  PostgreSQL |  Amazon DynamoDB |
|---|---|---|
Price | Free | Paid |
Best For | Database Builders | Database Builders |
Rating | — | — |
| Feature | PostgreSQL | Amazon DynamoDB |
|---|---|---|
| Pricing Model | Free | Paid |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Database BuildersManaged Databases | Database BuildersData Warehouses |
How PostgreSQL and Amazon DynamoDB Compare
PostgreSQL
Advanced open source SQL database
Free
Amazon DynamoDB
Serverless NoSQL database with single-digit millisecond latency
Paid
Who Should Use What?
On a budget?
PostgreSQL is free. Amazon DynamoDB is paid.
Go with: PostgreSQL
Want the highest-rated option?
Neither has user reviews yet.
Go with: PostgreSQL
Value user reviews?
Neither has user reviews yet.
Go with: PostgreSQL
3 Questions to Help You Decide
What's your budget?
PostgreSQL is free. Amazon DynamoDB is paid. Go with PostgreSQL if free matters most.
What's your use case?
Both are database builders tools. Compare their specific features to decide.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
PostgreSQL
- 0
- Completely free
- Our pick for this comparison
Amazon DynamoDB
The Bottom Line
PostgreSQL is our pick.
Frequently Asked Questions
Is PostgreSQL or Amazon DynamoDB better?
PostgreSQL is rated high in our evaluation. PostgreSQL is free and Amazon DynamoDB is paid.
What are PostgreSQL and Amazon DynamoDB used for?
PostgreSQL: Advanced open source SQL database. Amazon DynamoDB: Serverless NoSQL database with single-digit millisecond latency.
What does PostgreSQL cost vs Amazon DynamoDB?
PostgreSQL is completely free. Amazon DynamoDB is a paid tool. Visit their websites for detailed pricing.