Supabase Auth offers a Postgres-native authentication solution that significantly reduces development time and costs compared to building custom auth systems. The service provides JWT-based authentication with Row Level Security integration, supporting multiple providers and security features. Building authentication from scratch typically requires 320-680 hours in the first year, while Supabase Auth can be implemented in 4-24 hours, representing potential savings of $47,400-$98,700. The comparison with Auth0 shows Supabase's advantages in cost predictability, database integration, and open-source flexibility, though Auth0 excels in enterprise features. Teams should only build custom auth for specialized compliance requirements, legacy system integration, or unique authentication flows.
Table of contents
How Supabase Auth works under the hood #The hidden costs of building your own auth #The Supabase Auth approach #Choosing between Supabase Auth and Auth0 #When should you build your own auth? #Making the decision #Getting started #Sort: