Supabase vs Firebase
Which is better in 2026?
Supabase
Veltrix Score
Firebase
Veltrix Score
Key Differences
| Aspect | Supabase | Firebase |
|---|---|---|
| Database | PostgreSQL (relational) | Firestore (NoSQL) |
| Open source | Yes | No |
| Real-time | Postgres changes | Native real-time sync |
| Auth | Built-in, extensible | Firebase Auth (mature) |
| Vendor lock-in | Low — standard Postgres | High — proprietary APIs |
Best for — Supabase
- +SQL and relational data
- +Open-source stack
- +Postgres ecosystem
- +Row-level security
Best for — Firebase
- +Real-time applications
- +Mobile-first development
- +Google Cloud integration
- +Rapid prototyping
Analysis
Supabase and Firebase both aim to be the backend-as-a-service that lets you ship faster, but they are built on fundamentally different foundations. Supabase uses PostgreSQL — a battle-tested relational database — while Firebase uses Firestore, Google's proprietary NoSQL document database.
For developers who think in SQL and want relational data modelling, Supabase is the clear choice. Its row-level security, Postgres extensions, and standard SQL support mean your skills and data are portable. Being open-source also means you can self-host if needed.
Firebase's strength is its real-time sync and mobile-first design. For applications where data needs to flow instantly between clients — chat apps, collaborative tools, live dashboards — Firebase's real-time database is more mature and easier to implement. Its integration with the broader Google Cloud ecosystem is also a significant advantage for large-scale applications.
Choose Supabase if you want SQL, open source, and low vendor lock-in. Choose Firebase if you need best-in-class real-time sync, are building mobile-first, or are already invested in Google Cloud.
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