Best NextAuth.js (Auth.js) Alternatives(2026)
We compared 3 alternatives to NextAuth.js (Auth.js) — so you can find the best option for your needs and budget.
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You're replacing
NextAuth.js (Auth.js)
freeAuthentication for the Web
Common reasons to switch
More setup requiredNo prebuilt UIDocs can be confusing
Clerk is a complete authentication and user management solution with pre-built UI components.
Pros
+Fastest setup
+Beautiful prebuilt components
+Organizations support
Cons
−Pricey at scale (per MAU)
−Vendor lock-in risk
−Less control vs Auth.js
Prebuilt UI componentsSocial loginsMFAOrganizations/teamsJWT templates
Auth0 is an identity platform for web, mobile, and IoT with support for social logins, SSO, and more.
Pros
+Enterprise-grade
+Highly customizable
+Excellent docs
Cons
−Complex for simple use cases
−Expensive at scale
−Config-heavy
Universal LoginSocial connectionsMFASSOMachine-to-machine auth
Supabase is an open source Firebase alternative providing a Postgres database, Auth, realtime, storage, and edge functions.
Pros
+Full Postgres with SQL
+Built-in auth and storage
+Open source
Cons
−Free tier pauses after 1 week inactive
−Self-hosting is complex
−Edge functions limited
PostgreSQLAuthenticationRealtimeStorageEdge Functions