Supabase

Supabase is an open source alternative to Firebase built on the PostgreSQL database. It's made by the company of the same name with a large developer community, and it's for anyone building a web app or product who needs a ready-made backend — from solo founders and vibe coding builders to development teams.

It works simply: spin up a project and instantly get a full Postgres database with auto-generated REST and GraphQL APIs. On top of your data you add user management, file storage, and server-side functions, so you never have to stitch things together by hand. You control everything from a clean dashboard or straight through SQL.