Supabase
The open source Firebase alternative
freemiumfrom $25/moOpen SourceFree tier
Supabase is an open-source backend-as-a-service built on PostgreSQL. It provides authentication, realtime subscriptions, storage, edge functions, and a hosted database.
Pros
- Open source and self-hostable
- Standard PostgreSQL — no vendor lock-in
- Generous free tier
- Great DX with auto-generated APIs
Cons
- Cold starts on free tier
- Edge function ecosystem still maturing