Open-source Postgres-based BaaS vs Google's closed-source BaaS.
| Supabase | Firebase | |
|---|---|---|
| Database | Postgres (SQL) | Firestore (NoSQL) |
| Real-time | Good | Best-in-class |
| Self-hostable | Yes | No |
| Ecosystem | Growing | Mature + Google integrations |
Want SQL/Postgres, want open-source, prefer not to lock into Google.
Want best real-time, Google ecosystem, don't need SQL.
Supabase for most new projects. Firebase for real-time-heavy apps or Google-native teams.