Supabase

Supabase is an open-source Firebase alternative built on top of PostgreSQL. It provides a complete backend-as-a-service, automatically generating APIs from your database schema.

It is perfect for small businesses that want the power and reliability of a relational database without the overhead of managing complex infrastructure. With built-in authentication, real-time subscriptions, and file storage, it allows developers to build full-stack applications rapidly. Its focus on developer experience and standard SQL makes it a top choice for modern startups and growing businesses.