PostgreSQL vs SQLite: Technical guide for web apps and SaaS

Short summary

PostgreSQL excels for multi-user web apps and SaaS with superior concurrency control and data integrity; SQLite suits single-user apps and development environments. The critical difference is concurrency: PostgreSQL handles unlimited concurrent users while SQLite locks the database during writes. For any public-facing SaaS, PostgreSQL is the industry standard used by Stripe, Notion, and GitHub.

• •PostgreSQL handles concurrent users and scales for production SaaS; SQLite is single-writer only
• •PostgreSQL offers data integrity, user management, and rich data types; SQLite is config-free and embedded
• •SaaS requires PostgreSQL for multi-tenancy, high availability, and zero-downtime migrations

Generated with AI, which can make mistakes.