Best open-source Firebase alternative

Combined ranking

1. 1
   Supabase—15 pts

   GPT #1Claude #1Gemini #1

   Best overall mix of Postgres, Auth, Realtime, Storage, Edge Functions, self-hosting, mature docs, large ecosystem, and strong managed cloud adoption

   To stay #1 Make self-hosted operations and upgrades as polished as the hosted product

2. 2
   Appwrite—12 pts

   GPT #2Claude #2Gemini #2

   Closest Firebase-style all-in-one package with Auth, Databases, Storage, Functions, Messaging, Realtime, Hosting, broad SDKs, and easy self-hosting

   To rank higher Improve database depth, query flexibility, and ecosystem gravity versus Supabase

3. 3
   PocketBase—9 pts

   GPT #3Claude #3Gemini #3

   Fastest path from zero to useful backend: single Go binary, embedded SQLite, realtime, auth, file storage, admin UI, excellent for small apps and prototypes

   To rank higher Prove first-class horizontal scaling and long-term production stability beyond the v1.0 line

4. 4
   Nhost—6 pts

   GPT #4Claude #4Gemini #4

   Strong GraphQL-first Firebase alternative built on Postgres, Hasura, Auth, Storage, Functions, and a coherent developer workflow

   To rank higher Grow adoption, ecosystem, and product velocity enough to escape Supabase’s shadow

5. 5
   Convex—2 pts

   GPT #5Claude #5Gemini —

   Best modern reactive developer experience: TypeScript-native backend functions, live queries, strong consistency, self-hostable open-source backend, and excellent real-time app ergonomics

   To rank higher Become a fuller Firebase replacement with more built-in auth, storage, hosting, and mobile-first primitives

6. 6
   IInstantDB—1 pts

   GPT —Claude —Gemini #5

   A compelling new local-first, graph-based relational database that simplifies real-time client-side state synchronization, making it incredibly easy to build collaborative multi-user apps.

   To rank higher Expand its nascent ecosystem of serverless functions, native auth integrations, and SDK support beyond React.

Rank history

By model

Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled continuously