Supabase

Supabase is an open-source backend platform built around Postgres that gives developers a hosted database, authentication, file storage, real-time subscriptions, and auto-generated APIs out of the box, positioning itself as an open-source alternative to Firebase for teams that want the productivity of a managed backend without giving up a real relational database underneath. Because every Supabase project is a real Postgres instance, developers get the full power of SQL, extensions, and row-level security policies rather than a proprietary NoSQL data model, which matters for teams that expect their data layer to support complex queries and relationships as an application grows. Supabase auto-generates a RESTful and GraphQL API directly from a database schema, so frontend and mobile developers can start reading and writing data without writing custom backend endpoints for every table, while row-level security policies enforce access control directly at the database layer rather than relying solely on application code. Its authentication service supports email, social login, and magic links out of the box, and integrates directly with the same row-level security model used for data access. Because the entire stack is open-source, teams can self-host Supabase on their own infrastructure if needed, avoiding vendor lock-in that comes with fully proprietary backend platforms. Supabase is widely adopted by startups building web and mobile apps that want to move fast without sacrificing a real, extensible SQL database.