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 Data & Databases pick. Pick MariaDB if you need a fully free option.
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:
PostgreSQL
Advanced open source SQL database
Best for you if:
- • You want most advanced open-source database
MariaDB
Open-source relational database from MySQL creators
Best for you if:
- • You want MySQL fork, compatible
| At a Glance | PostgreSQL | MariaDB |
|---|---|---|
Starts at | Free 100% free | Free 100% free |
Category | Data & Databases | Data & Databases Managed Databases |
Rating | 4.5/5 G2 4.4 · Capterra 4.6 1,094 reviews | 4.4/5 G2 4.4 226 reviews |
Free plan | Yes | Yes |
Choose PostgreSQL or MariaDB?
Choose PostgreSQL if
- You want most advanced open-source database
- You want excellent for complex queries and JSON
Choose MariaDB if
- You want MySQL fork, compatible
- You want open source
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.
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
MariaDB
Open-source relational database from MySQL creators
MariaDB's pricing is very generous, offering a fully-featured Community edition for free.
Strengths
- Pro: MySQL fork, compatible
- Pro: Open source
- Pro: Active development
- Pro: Good performance
- Pro: Enterprise features free
Weaknesses
- Con: Diverging from MySQL
- Con: Smaller ecosystem
- Con: Some tools MySQL-only
- Con: Documentation gaps
- Con: 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.
Key Takeaways
PostgreSQL
- Higher user rating: 4.5/5 vs 4.4/5
- Larger review base (1,094 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 overall Data & Databases pick.
Frequently Asked Questions
Is PostgreSQL or MariaDB better in 2026?
PostgreSQL is our overall Data & Databases pick. Pick PostgreSQL for data & databases workflows (main strength: most advanced open-source database). Pick MariaDB for data & databases workflows (main strength: MySQL fork, compatible).
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 free. MariaDB's paid plans start at Free (SkySQL).
What's the main difference between PostgreSQL and MariaDB?
PostgreSQL's main strength: most advanced open-source database. MariaDB's main strength: MySQL fork, compatible.