Supabase
Open-source Firebase alternative with Postgres database, auth, storage, and real-time subscriptions. 100K+ developers.
💬 Verdict
Supabase is an excellent choice for developers who want the power of PostgreSQL with the convenience of an integrated Ba
Supabase
Plans start at $25/month
📊 Pros & Cons
Pros
- 👍 Uses full PostgreSQL, giving you real relational database features like joins, foreign keys, views, and SQL functions instead of a NoSQL workaround.
- 👍 Includes 7 core services in one platform—database, auth, storage, realtime, edge functions, vector embeddings, and APIs—so you avoid stitching lots of backends together.
- 👍 Built-in row-level security and custom access policies let you enforce permissions directly in Postgres, which is harder to do with many BaaS providers.
- 👍 Strong developer experience with a clean dashboard, SQL editor, local CLI, and TypeScript-friendly SDKs.
- 👍 Open-source and can be self-hosted if you eventually need full infrastructure control or want to leave a hosted platform.
Cons
- 👎 Free tier projects pause after 7 days of inactivity, which can break demo apps or forgotten services until you log in.
- 👎 Realtime features are not as mature or configurable as dedicated services like Ably or Pusher, especially at scale.
- 👎 Auth system lacks some advanced multi-tenant and enterprise SSO features that Firebases or Auth0 offer without custom work.
- 👎 Pricing can grow unpredictably with egress, file storage, and database size, and some features like custom domains and high availability are locked behind higher tiers.
- 👎 You still need a good understanding of PostgreSQL and SQL to build complex apps; it is not as beginner-friendly as pure-document NoSQL backends.
🎯 Use Cases
Supabase bundles Postgres, auth, storage, and realtime subscriptions into one backend, so small teams can move quickly without assembling separate services.
Real-time Postgres changes and presence subscriptions make it straightforward to build live updates without managing a separate realtime server.
Supabase gives you full PostgreSQL, including foreign keys, joins, views, and SQL functions, which is far more powerful for relational data than document NoSQL stores.
Supabase Auth, storage, and edge functions cover common mobile backend needs, and the platform provides platform-appropriate SDKs.
Supabase Edge Functions can work with your database, but the function runtime is limited compared to a dedicated serverless platform like AWS Lambda or Vercel.
🔌 Integrations
🔍 Deep Dive
Extra fees for egress over the included quota, additional database storage, larger file storage, and advanced features like custom domains, dedicated resources, or higher availability on the Team/Enterprise plans can add up.
Moderate — if you know SQL and basic REST, you'll be productive quickly, but row-level security, realtime subscriptions, and edge functions take time to master.
Teams that want the maturity and enterprise support of Firebase/Google Cloud, or non-developers who do not want to touch SQL and relational modeling.
❓ Frequently Asked Questions
Is Supabase free to use?
Supabase has a free tier that includes 500 MB of database storage, 1 GB storage for files, and 5 GB egress per month. Paid plans start at $25 per month for the Pro tier, which removes the project pause after inactivity and increases limits.
Can I use my existing PostgreSQL database with Supabase?
Yes. Supabase is built on PostgreSQL, and you can connect to your database using standard Postgres connection strings. The service also supports pg_dump/pg_restore for migrating existing Postgres data into Supabase.
Does Supabase replace Firebase authentication?
Supabase provides built-in authentication with email/password, OAuth providers, phone login, and magic links. It is a solid Firebase Auth alternative, but it does not have Firebase's built-in client SDK ecosystem for every platform; you often use PostgREST or custom APIs for complex auth rules.
What are Supabase's main limitations?
The free tier pauses projects after 7 days of inactivity, and there are limits on database size, row counts, monthly active users, egress, and file storage. On paid tiers, advanced features like higher availability, custom domains, and bigger limits cost more.
Can I self-host Supabase?
Yes, Supabase is open-source and you can self-host it using Docker or Kubernetes. Self-hosting gives you full control but requires you to manage PostgreSQL, Realtime, Auth, Storage, and Edge Functions yourself, so it is more operationally complex.
Does Supabase work with React, Vue, or Node.js?
Yes. Supabase provides official JavaScript/TypeScript client libraries as well as Dart, Python, Go, and Kotlin. You can also use standard REST APIs and PostgREST calls from any stack.
What is the difference between Supabase and Firebase?
Supabase uses PostgreSQL and SQL, supports relational data, and offers row-level security, while Firebase uses NoSQL Firestore and a more document-based model. Supabase is also open-source and allows self-hosting; Firebase has tighter integration with Google Cloud and mobile analytics.
