MySQL vs PostgreSQL (2026): Which Database Should You Choose?

Quick Answer

PostgreSQL is the recommended default for new applications in 2026 — it has superior JSON support (JSONB), advanced indexing, better ACID compliance, and richer SQL standards support including window functions and CTEs. MySQL remains the dominant choice for WordPress, legacy applications, and high-concurrency simple reads. Both are excellent open-source databases — PostgreSQL wins on features, MySQL wins on ecosystem ubiquity for traditional web apps.

MySQL

8.8/10

Best for WordPress & legacy apps

PostgreSQL

9.3/10

Best for modern applications

Feature Comparison

Feature	MySQL	PostgreSQL
License	GPL v2 / Commercial (Oracle)	PostgreSQL License (very permissive)
JSON Support	JSON type (basic)	JSONB — binary JSON with indexing
Full-Text Search	Basic full-text search	Advanced FTS with tsvector/tsquery
ACID Compliance	InnoDB — ACID compliant	Fully ACID compliant from the start
Window Functions	Since MySQL 8.0	Excellent — mature implementation
Replication	Simple — widely understood	Streaming replication — robust
Extensions	Limited extensions	PostGIS, pgvector, TimescaleDB, etc.
Best For	WordPress, Drupal, read-heavy apps	SaaS apps, complex queries, modern stack

Which do you use?

MySQL

PostgreSQL

Who Should Choose What?

Choose MySQL if:

You are running WordPress, Drupal, or another CMS that defaults to MySQL, have existing MySQL infrastructure and expertise, or need the widest shared hosting support. MySQL's simplicity and massive community make it easy to find developers, tutorials, and managed hosting options (AWS RDS for MySQL, PlanetScale).

Choose PostgreSQL if:

You are building a new SaaS application, need advanced JSON storage (JSONB), geospatial data (PostGIS), vector similarity search (pgvector for AI), or complex analytics. PostgreSQL is the default for Supabase, Railway, Neon, and most modern cloud database services. Its extensibility and standards compliance make it the superior choice for complex applications.

FAQ

Is MySQL or PostgreSQL better for web applications?

PostgreSQL is better for new applications — superior JSON, advanced indexing, and richer SQL. MySQL is better for WordPress and legacy CMS apps. For modern SaaS or API backends, PostgreSQL is the recommended default in 2026.

Is PostgreSQL faster than MySQL?

PostgreSQL is faster for complex queries and analytics. MySQL can be faster for simple high-concurrency reads. For most modern applications with mixed workloads, performance is comparable — choose based on features, not benchmark microtests.

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