Can SQLite handle a web application?

For low-to-medium traffic with few concurrent writes, yes. SQLite with WAL mode handles thousands of reads per second. Services like Turso and LiteFS enable distributed SQLite. For high-write apps, PostgreSQL is better.

Is SQLite faster than PostgreSQL?

For single-user reads and writes, SQLite is faster (no network overhead). For concurrent access, PostgreSQL is faster (row-level locking vs SQLite's database-level locking).

Should I use SQLite for testing?

Yes, SQLite is excellent for testing — fast setup, in-memory mode, and no external dependencies. But test with your production database too, as SQL behavior can differ between SQLite and PostgreSQL.

Last updated: April 12, 2026

SQLite vs PostgreSQL — Embedded vs Client-Server Database in 2026

Quick Answer

SQLite is a zero-configuration embedded database stored in a single file — perfect for mobile apps, desktop apps, and edge deployments. PostgreSQL is a full client-server database for web applications. SQLite handles billions of rows; PostgreSQL handles thousands of concurrent writers.

SQLite vs PostgreSQL — Side by Side

Feature	SQLite	PostgreSQL
Architecture	Embedded — single file, no server	Client-server — separate process
Concurrency	Single writer (WAL mode helps readers)	Many concurrent readers and writers
Setup	Zero configuration — just a file	Requires server setup/management
Size Limit	281 TB max database size	Unlimited (storage-bound)
Network	No network — local only (or Turso/LiteFS)	Network protocol — remote clients
Use Cases	Mobile apps, desktop, IoT, edge, testing	Web apps, SaaS, analytics, enterprise
Extensions	Limited	Rich — PostGIS, pgvector, TimescaleDB

Verdict

Choose SQLite for mobile/desktop apps, prototyping, edge deployments (Turso/LiteFS), and low-write workloads. Choose PostgreSQL for web applications with concurrent users, complex queries, and when you need extensions like PostGIS or pgvector.

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