PostgreSQL vs MariaDB: Which is Better in 2026?
Choosing between PostgreSQL and MariaDB 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 pick for data & databases workflows. Pick MariaDB 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:
PostgreSQL
Advanced open source SQL database
Best for you if:
- • PostgreSQL is an advanced open-source relational database
- • It provides extensibility, standards compliance, and enterprise features
MariaDB
Open-source relational database from MySQL creators
Best for you if:
- • MariaDB is an open-source relational database forked from MySQL
- • It provides enhanced performance and features while maintaining MySQL compatibility
| At a Glance |  PostgreSQL |  MariaDB |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Data & Databases | Data & Databases |
Rating | 4.5/5 | 4.5/5 |
Free plan | Yes | Yes |
Choose PostgreSQL or MariaDB?
Choose PostgreSQL if
Advanced open source SQL database
- Most advanced open-source database
- Excellent for complex queries and JSON
- Strong data integrity and ACID compliance
Choose MariaDB if
Open-source relational database from MySQL creators
- MySQL fork, compatible
- Open source
- Active development
| Feature | PostgreSQL | MariaDB |
|---|---|---|
| Pricing Model | Free | Free |
| User Rating | ★4.5/5 1,096 reviews | ★4.5/5 296 reviews |
| Categories | Data & Databases | Data & DatabasesManaged Databases |
In-Depth Analysis
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.
Watch out
Requires internal IT/DBA expertise
Strengths
- +Most advanced open-source database
- +Excellent for complex queries and JSON
- +Strong data integrity and ACID compliance
- +Highly extensible with extensions
- +Large community and ecosystem
Weaknesses
- -Can be complex to tune for performance
- -Vertical scaling more limited than NoSQL
- -Replication setup requires expertise
- -Memory-intensive for large datasets
- -Less suitable for simple key-value use cases
Key features
MariaDB
Open-source relational database from MySQL creators
MariaDB's pricing is very generous, offering a fully-featured Community edition for free.
Watch out
SkySQL data transfer costs not specified
Strengths
- +MySQL fork, compatible
- +Open source
- +Active development
- +Good performance
- +Enterprise features free
Weaknesses
- -Diverging from MySQL
- -Smaller ecosystem
- -Some tools MySQL-only
- -Documentation gaps
- -Less cloud support
Key features
Pricing: PostgreSQL vs MariaDB
| Plan | PostgreSQL | MariaDB |
|---|---|---|
| Tier 1 | $0 Free | Free Community |
| Tier 2 | N/A | $65 month SkySQL |
Pricing verified from each vendor's public pricing page. Compare in detail on PostgreSQL pricing and MariaDB pricing.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: PostgreSQL
Want the highest-rated option?
PostgreSQL: 4.5/5 (1,096 reviews). MariaDB: 4.5/5 (296 reviews).
Go with: PostgreSQL
Value user reviews?
PostgreSQL: 1,096 reviews (4.5/5). MariaDB: 296 reviews (4.5/5).
Go with: PostgreSQL
3 Questions to Help You Decide
What's your budget?
Both are free. Pricing won't help you decide here.
What's your use case?
Both are data & databases tools. Compare their specific features to decide.
How important are ratings?
Both are rated 4.5/5.
Key Takeaways
PostgreSQL
- Larger review base (1,096 reviews)
- Completely free
- Our pick for this comparison
MariaDB
- Choose if you want open-source relational database from MySQL creators
The Bottom Line
PostgreSQL is our pick.
Frequently Asked Questions
Is PostgreSQL or MariaDB better?
PostgreSQL is rated in our evaluation. Both are free.
What are PostgreSQL and MariaDB used for?
PostgreSQL: Advanced open source SQL database. MariaDB: Open-source relational database from MySQL creators.
What does PostgreSQL cost vs MariaDB?
PostgreSQL is completely free. MariaDB is completely free. Visit their websites for detailed pricing.