Supabase vs Auth0
Compare Supabase and Auth0 side by side. Features, pricing, pros and cons to help you choose the right authentication platform.
🏆 Quick Verdict
Supabase includes authentication as part of its integrated backend platform. Auth0 is a dedicated identity-as-a-service for any stack. Choose Supabase if you're using it as your database; choose Auth0 for standalone authentication with enterprise needs.
Overall Scores
Supabase
Auth0
Feature Comparison
Supabase Advantages
- ✓ Database
- ✓ Authentication
- ✓ File Storage
- ✓ Realtime Sync
- ✓ Edge Functions
- ✓ Vector Search
- ✓ REST API
- ✓ Self-Hosted Option
- ✓ Auto Backups
- ✓ Database Branching
- ✓ Row-Level Security
- ✓ CLI Tool
- ✓ TypeScript Support
Both Have
- = Webhooks
Auth0 Advantages
- Similar feature set
Pricing Comparison
Supabase
Free starting
- free: Available
- pro: $25/mo
- team: $599/mo
- enterprise: custom
Auth0
Free starting
- free: Available
- essentials: $23/mo
- professional: $240/mo
- enterprise: custom
Pros & Cons
Pros
- + Open source and self-hostable
- + Postgres database (SQL)
- + Built-in auth, storage, and edge functions
- + Generous free tier
- + Excellent developer experience
Cons
- − Younger platform than Firebase
- − Smaller community and ecosystem
- − Some features still maturing
Pros
- + Best-in-class enterprise SSO and SAML
- + Massive SDK ecosystem (30+ languages)
- + Excellent documentation
- + Compliance-ready (SOC2, HIPAA, GDPR)
- + Universal Login page
Cons
- − Pricing gets expensive fast with users
- − Okta acquisition added complexity
- − Free tier limited to 7,500 MAU
- − Can feel heavy for simple apps
In-Depth Analysis
Supabase Auth is deeply integrated with Supabase's Postgres database — Row Level Security policies reference the authenticated user directly, enabling database-level authorization without application code. If you're using Supabase for your database, using Supabase Auth is a natural, tightly integrated choice that simplifies your security model significantly.
Auth0 is the battle-tested enterprise identity platform. It supports SAML, LDAP, OpenID Connect federation for enterprise SSO, complex MFA policies, anomaly detection, and compliance certifications (SOC 2, HIPAA, ISO 27001). These enterprise identity features are beyond Supabase Auth's current scope.
Developer experience for web apps has converged significantly. Both Supabase Auth and Auth0 support social logins (Google, GitHub, Apple, etc.), magic links, and email/password. Supabase Auth's pricing (included in Supabase plans) makes it cost-effective for startups. Auth0's free tier (7,500 MAU) is also generous but enterprise features add significant cost.
The decision is usually straightforward: if you're using Supabase as your backend, Supabase Auth is the obvious choice due to RLS integration. If you need standalone auth for a non-Supabase stack, or have enterprise SSO requirements, Auth0 is more appropriate.
Who Should Choose What?
Choose Supabase if:
Supabase Auth: Teams using Supabase as their primary backend who want RLS-integrated authentication
Choose Auth0 if:
Auth0: Enterprise applications needing SAML, complex federation, or standalone auth for any tech stack
Ready to Get Started?
Try both platforms free and see which one feels right.