PlanetScale vs Neon

PlanetScale and Neon are two of the most developer-loved cloud databases, and their comparison is close. Both have serverless architectures that scale to zero, both have Git-like database branching, and both are designed for modern cloud-native applications. The most significant difference is the underlying database engine: MySQL (PlanetScale) vs PostgreSQL (Neon).

PlanetScale's branching workflow is more mature and central to its product identity. The ability to create a database branch for every pull request, run migration checks automatically, and deploy schema changes without downtime is PlanetScale's flagship feature. Teams doing frequent schema changes in CI/CD find this workflow valuable.

Neon's PostgreSQL foundation gives it access to the broader Postgres extension ecosystem. pgvector for AI embeddings, PostGIS for geospatial queries, and the vast ORM ecosystem (Prisma fully supports Postgres features). For teams building AI-powered features or using specialized Postgres extensions, Neon's Postgres base is more extensible.

Foreign key handling: PlanetScale famously doesn't enforce foreign key constraints at the database level (citing Vitess compatibility), leaving referential integrity to the application layer. This is a philosophical and practical difference — some teams find it freeing, others find it problematic. Neon's standard Postgres enforces FK constraints normally.