Supabase Auth vs Firebase Authentication

Free with Supabase meets the lazy developer's dream for user sign-ins—just add water and pray it scales. Here's our take.

Supabase Auth

Nice Pick

Free with Supabase. Good enough for most apps.

Pros

• Free
• Integrated with Supabase
• Row-level security
• Social logins

Cons

• Less polished UI
• Fewer features
• Tied to Supabase

Firebase Authentication

The lazy developer's dream for user sign-ins—just add water and pray it scales.

Pros

• Dead-simple setup with pre-built UI components
• Handles social logins and phone auth without breaking a sweat
• Tight integration with other Firebase services like Firestore and Cloud Functions

Cons

• Vendor lock-in that makes switching away feel like a prison break
• Pricing can sneak up on you with high-volume phone authentication

The Verdict

These tools serve different purposes. Supabase Auth is a authentication while Firebase Authentication is a hosting & deployment. We picked Supabase Auth based on overall popularity, but your choice depends on what you're building.

The Bottom Line

Supabase Auth wins

Based on overall popularity. Supabase Auth is more widely used, but Firebase Authentication excels in its own space.