# Supabase Auth
> Supabase Auth is a managed authentication and authorization service that provides a complete user management system. Built on the open-source GoTrue server, it offers deep integration with PostgreSQL Row Level Security, allowing developers to handle user access directly within their database layers.
- URL: https://optimly.ai/brand/supabase-auth
- Slug: supabase-auth
- BAI Score: 76/100
- Archetype: Challenger
- Category: Software Development Tools
- Last Analyzed: April 10, 2026
- Part of: Supabase (https://optimly.ai/brand/supabase)
## Competitors
- Auth0 (https://optimly.ai/brand/auth0)
- Clerk (https://optimly.ai/brand/clerk)
## Also Referenced By
- Application Native Auth (https://optimly.ai/brand/application-native-auth)
## Buyer Intent Signals
Problems: Custom Backend Implementation: Building custom JWT-based authentication using libraries like Passport.js or bcrypt with a manual database schema. | Basic Auth Systems: Hardcoding simple password checks or relying on web server basic auth for internal tools.
Solutions: open source firebase authentication alternative | how to add auth to postgresql | next.js authentication libraries | enterprise sso for b2b saas | Firebase Auth (as standalone): Using Firebase for authentication while hosting the remainder of the application on a different stack.
Comparisons: supabase vs auth0 for developers