Supabase vs Firebase

Backend-as-a-Service

Both offer auth, database, and real-time features — but they take fundamentally different approaches to data ownership and vendor lock-in.

Supabase leads overall

Supabase

Scenarios won1 of 3
Feature edges4 of 11

Firebase

Scenarios won1 of 3
Feature edges3 of 11
1 scenario tied · 4 features even
💡

Bottom Line

Choose Supabase for data ownership, SQL, and self-hosting. Choose Firebase for mobile-first apps, real-time features, and Google ecosystem integration.

Feature Comparison

4 Supabase · 3 Firebase
Feature
Supabase
Firebase
Database Type
PostgreSQL (relational)
Firestore (NoSQL document)
SQL Support
Full SQL with joins, views, functions
No SQL — query API only
Real-time
Postgres changes via websockets
Native real-time listeners
Auth
Built-in, social + email + phone
Firebase Auth, very mature
Storage
S3-compatible object storage
Cloud Storage (Google)
Edge Functions
Deno-based edge functions
Cloud Functions (Node.js)
Self-Hosting
Docker compose, full self-host
Not available
Vendor Lock-in
Low — standard Postgres
High — proprietary format
Mobile SDKs
Flutter, React Native
iOS, Android, Flutter, Unity
Free Tier
500 MB db, 1 GB storage
1 GiB Firestore, 5 GB storage
Open Source
Yes (Apache 2.0)
No

Which Is Right for You?

The best choice depends on your role, constraints, and priorities.

Startup Founder

Prioritizes speed, cost, and simplicity. Needs to ship fast on a budget.

Either works

Both work well for MVPs. Choose Supabase if you want SQL and data portability. Choose Firebase if you need mobile-first or Google Cloud integration.

Enterprise Architect

Prioritizes maturity, compliance, support, and scalability over cost.

Supabase

Supabase wins on data ownership, self-hosting, and SQL compliance. Postgres is an industry standard; Firestore is a proprietary lock-in risk.

Solo Developer

Prioritizes free tiers, good docs, and low setup friction.

Firebase

Firebase has a larger community, more tutorials, and a lower learning curve. Great for side projects and prototypes.

Agency / Consultant

Prioritizes flexibility, multi-project support, and professional tooling.

Supabase

Supabase's Postgres foundation makes it easier to hand off projects to clients and migrate if needed.

Scenario Breakdown

Each scenario represents a real user type with specific constraints. The winner is determined by which tool best fits those constraints.

Startup MVP

Startup FounderFree tier, fast setup, small team
≈ Tie

Both offer generous free tiers and quick-start SDKs. Firebase has stronger mobile SDKs; Supabase has better SQL access.

Enterprise SaaS

Enterprise ArchitectData ownership, compliance, scalability
Supabase wins

Supabase runs on Postgres with full SQL access and self-hosting option. Firebase locks data into proprietary NoSQL format.

Solo Side Project

Solo DeveloperFree, good docs, low friction
Firebase wins

Firebase has years of community content, tutorials, and tight Google ecosystem integration. Lower learning curve for beginners.

Explore Each Tool

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