Supabase

What is Supabase?

Supabase is an open source backend-as-a-service platform built on PostgreSQL. It gives your app a dedicated Postgres database wrapped with authentication, file storage, auto-generated REST and GraphQL APIs, realtime subscriptions, and serverless edge functions — the building blocks of a backend, without assembling them yourself.

What is Supabase best for?

Developers who want a Postgres-backed backend for web, mobile, or AI apps without managing servers — and teams who prefer a real relational SQL database (with row-level security) over a proprietary NoSQL store. It’s a strong fit when you want the fast setup of a hosted backend like Firebase but want to own your data and avoid lock-in.

What can Supabase do?

• Provision a full Postgres database with instant REST and GraphQL APIs (via PostgREST)
• Handle auth — email/password, magic links, and social/OAuth logins — enforced with row-level security
• Store and serve files through a scalable object storage layer with CDN delivery
• Push live database changes to clients over realtime websocket subscriptions
• Run server-side logic with Deno-based edge functions
• Build AI features using pgvector for embeddings and vector similarity search
• Self-host the whole stack with Docker, or use the managed Supabase Cloud

Is Supabase free?

Yes — Supabase is free to self-host under the Apache-2.0 license, and you only pay for your own server. The managed cloud has a free tier (2 active projects, 500 MB database each, paused after a week of inactivity), then a Pro plan at $25/month and a Team plan at $599/month for larger or compliance-bound teams.

Where does Supabase fall short?

• Offline support is less mature than Firebase — there’s no full offline-sync SDK, so apps with spotty connectivity must handle caching and conflict resolution themselves.
• It expects SQL knowledge. Designing schemas and writing row-level security policies has a steeper learning curve than Firebase’s schemaless NoSQL approach.
• Self-hosting the full stack (database, auth, storage, realtime, functions) is more involved than running a single service, and a few cloud-only conveniences aren’t in the self-hosted build.

What does Supabase replace?

Supabase is an open source alternative to Firebase, Google’s app backend platform. It covers the same core jobs — database, authentication, storage, and realtime updates — but on an open Postgres foundation you can self-host, with SQL instead of Firestore’s NoSQL and no per-read billing.

FAQ

Is Supabase open source? Yes. The platform is released under the Apache-2.0 license and built on open source components like PostgreSQL, PostgREST, and GoTrue. You can self-host the entire stack.

Can I self-host Supabase for free? Yes. Self-hosting with Docker or the Supabase CLI is free — you only pay for the server it runs on. The managed Supabase Cloud is the paid, convenience option.

Is Supabase a good Firebase alternative? For most apps, yes — especially if you want a relational SQL database, open source components, and no vendor lock-in. Firebase still leads on built-in offline sync and mobile SDK maturity.

What do I need to self-host Supabase? A server with Docker. The self-hosted stack runs Postgres plus the Supabase services — auth, storage, realtime, APIs, and edge functions — via Docker Compose.