Supabase

Supabase is an open-source Firebase alternative for building scalable and secure backends. It offers a suite of integrated services, including a PostgreSQL database, authentication, instant APIs, Edge Functions, real-time subscriptions, storage and vector embeddings. Supabase aims to streamline back-end development, allowing developers to focus on building front-end experiences while leveraging the power and flexibility of open-source technologies. Unlike Firebase, Supabase is built on top of PostgreSQL. If you're working on prototyping or an MVP, Supabase is worth considering, as it will be easier to migrate to another SQL solution after the prototyping stage.