Updated for 2026

PostgreSQLvsMariaDB

Not sure which fits your workflow in 2026? Compare pricing, features, and trade-offs — then switch tools below to explore more options in this category.

Category
Tool A
Tool B

dev-database

PostgreSQL

PostgreSQL is the open-source relational database many modern stacks standardize on — powerful SQL, extensions, and a vast ecosystem.

Visit PostgreSQL

dev-database

MariaDB

MariaDB is a MySQL-compatible open-source RDBMS focused on community development and production SQL workloads.

Visit MariaDB

Basics

FeaturePostgreSQLMariaDB
Released19962009
CompanyPostgreSQL Global Development GroupMariaDB Foundation / MariaDB plc
CountryInternationalInternational
Region / AvailabilitySelf-host / multi-cloudSelf-host / multi-cloud

Pricing comparison

PlanPostgreSQLMariaDB
Modelopen-sourceopen-source
Free tierYesYes
Starts at$0/mo$0/mo
Plan 1Open Source: FreeCommunity: Free
Plan 2Managed clouds: Vendor pricingMany managed hosts availableEnterprise: Commercial support

Feature checklist

FeaturePostgreSQLMariaDB
Open Source✓https://github.com/postgres/postgres✓https://github.com/mariadb
Self-host Option✓✓
ACIDFull ACID complianceFull ACID (InnoDB / equivalent engines)
Index SupportB-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors)B-tree, full-text, and engine-specific indexes
ConcurrencyExcellent MVCC for mixed read/write workloadsStrong transactional concurrency for OLTP
ScalabilityVertical scale + replicas; sharding via extensions/opsReplicas and Galera-style clustering options
SQL Support✓✓
Postgres Compatible✓✗
Serverless Database✗✗
Vector Search✓✗
Realtime✗✗
Built-in Auth✗✗
Blob / File Storage✗✗
Edge Compatible✗✗
AI SQL / NL Query✗✗
AI Schema Assist✗✗
AI Agent / MCP✗✗
Team Collaboration✓✓
Use CaseGeneral-purpose open-source relational database and extension hubMySQL-compatible open-source RDBMS for production SQL workloads

Pros & cons

PostgreSQL

  • Gold-standard open-source SQL engine
  • Huge extension ecosystem (including vectors)
  • Foundation for many modern BaaS platforms
  • You assemble auth/storage yourself
  • Ops complexity grows without a managed host
  • Not a serverless product by itself

MariaDB

  • MySQL-compatible with an open governance model
  • Strong for traditional SQL workloads
  • Self-host friendly with commercial options
  • Ecosystem mindshare still trails MySQL/Postgres
  • Not a turnkey BaaS
  • Serverless DX depends on your host

Dimension scores

Editorial 0–10 scores across shared dimensions — higher is better for that axis.

DimensionPostgreSQLMariaDB
Capability
9.2
8.2
Privacy
9.5
9.0
Value
9.5
9.5
Depth
9.5
8.0
Ecosystem
9.5
8.0
DX
8.0
7.8
CapabilityPrivacyValueDepthEcosystemDX
  • PostgreSQL
  • MariaDB

FAQ

Is PostgreSQL better than MariaDB? (2026)

It depends on workflow. PostgreSQL emphasizes advanced open-source relational database with rich sql, extensions, and reliability. MariaDB emphasizes community-driven mysql-compatible relational database with enterprise-ready features. Use the feature checklist above for your stack.

Which use cases fit PostgreSQL vs MariaDB?
  • PostgreSQL: General-purpose open-source relational database and extension hub
  • MariaDB: MySQL-compatible open-source RDBMS for production SQL workloads
What are the main differences between PostgreSQL and MariaDB?
  • ACID: PostgreSQL (Full ACID compliance) vs MariaDB (Full ACID (InnoDB / equivalent engines))
  • Index Support: PostgreSQL (B-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors)) vs MariaDB (B-tree, full-text, and engine-specific indexes)
  • Concurrency: PostgreSQL (Excellent MVCC for mixed read/write workloads) vs MariaDB (Strong transactional concurrency for OLTP)
  • Scalability: PostgreSQL (Vertical scale + replicas; sharding via extensions/ops) vs MariaDB (Replicas and Galera-style clustering options)
  • Postgres Compatible: PostgreSQL (yes) vs MariaDB (no)
How do PostgreSQL and MariaDB compare on pricing?

PostgreSQL pricing overview:

  • Has a free tier
  • Pricing model: open source
  • Starting from ~$0/mo
  • Plan Open Source: Free
  • Plan Managed clouds: Vendor pricing

MariaDB pricing overview:

  • Has a free tier
  • Pricing model: open source
  • Starting from ~$0/mo
  • Plan Community: Free
  • Plan Enterprise: Commercial support

Always verify current prices on the vendor site before buying.

Do PostgreSQL and MariaDB offer a free tier?
  • PostgreSQL: Has a free tier
  • MariaDB: Has a free tier
Are PostgreSQL and MariaDB open source?
  • PostgreSQL: yes
  • MariaDB: yes
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Related alternatives

PostgreSQL alternatives

MariaDB alternatives

Disclaimer:Not Financial or Investment Advice, Educational/Dev Tool Comparison Only. Information may change; always verify pricing on the vendor site before purchasing.