Supabase
An open-source Postgres platform: database, auth, storage, realtime and edge functions behind one API.

Best for
Teams that want Firebase-style speed without giving up SQL or vendor control.
Why it deserves attention
Supabase gives every project a real Postgres database, then wraps it with auto-generated REST and GraphQL APIs, authentication with row-level security, file storage, realtime subscriptions, Deno edge functions and vector search for embeddings. The dashboard handles schema, policies and logs, while the CLI can spin up the whole stack locally in Docker so development matches production. It has roughly 115,000 GitHub stars, a usable free tier, and can be self-hosted. Watch the costs and caveats: free projects pause when idle, heavy egress and compute move you onto paid tiers, and self-hosting is a real infrastructure job rather than a one-liner.
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Can replace
- Firebase
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