Supabase vs Firebase: Why We Chose Supabase for Production Applications

The Backend-as-a-Service Landscape

Firebase dominated the BaaS space for years. But Supabase — the open-source alternative built on PostgreSQL — has emerged as a serious contender. After building 20+ production applications with both platforms, here's our honest assessment of when to use each.

Database: SQL vs NoSQL

Firebase's Firestore is a document database. It's great for simple data models but becomes painful when you need complex queries, joins, or aggregations. Supabase uses PostgreSQL — the world's most advanced open-source database. You get full SQL power, foreign keys, views, functions, and the ability to run complex analytical queries without a separate data warehouse.

Row-Level Security: Supabase's Killer Feature

Supabase's RLS lets you define security policies directly in the database using SQL. This means your data is protected at the lowest level, regardless of which client accesses it. Firebase's security rules work but are defined in a proprietary language that becomes unwieldy for complex authorization logic.

Pricing & Vendor Lock-in

Supabase is open-source. You can self-host it on any cloud provider. Firebase locks you into Google Cloud. For startups this might not matter, but for enterprises with data sovereignty requirements or multi-cloud strategies, Supabase offers flexibility that Firebase simply cannot match.

Our Recommendation

For new projects requiring relational data, complex queries, or enterprise-grade security, we recommend Supabase. For rapid prototyping with simple data models, Firebase remains a viable choice. At EFE Technology, we've standardized on Supabase + Next.js as our go-to production stack. Talk to us about your next project.