Auth0 vs NextAuth.js

At a Glance

Auth0

NextAuth.js

Auth0

NextAuth.js

No features listed.

Auth0

Pros

Battle-tested enterprise auth with every compliance certification you'd need to close enterprise deals (SOC2, HIPAA, etc.)+163
The rules and actions pipeline lets you add custom logic to every auth step — useful for things like provisioning users in your database on first login+141
Every social provider, SAML IdP, and enterprise connection you could need is supported and well documented+128
Organizations feature handles multi-tenancy with per-org branding and connection settings which is essential for B2B+117

Cons

Pricing is confusing and the free tier limit of 7,500 MAU sounds generous until you hit it and face a $23/mo minimum with rapid escalation at scale

Authentication

Clerk vs Auth0

Authentication

Clerk vs Auth0 vs WorkOS

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NextAuth.js

Pros

Completely free and open source — no MAU limits, no pricing tiers, no vendor lock-in regardless of how large your app grows+184
Deep Next.js integration means session is available server-side in getServerSideProps, API routes, and App Router with minimal setup+162
Huge community and ecosystem means every common provider (Google, GitHub, Discord) has a working example you can copy+138
You own your session data since it stores in your own database — GDPR compliance is much simpler when you control everything+119

Cons

The configuration is complex and the documentation has gaps that require reading source code or GitHub issues to resolve edge cases+158
Email magic link setup requires configuring your own SMTP provider and debugging delivery issues isn't covered in the docs+132
TypeScript types have historically been incomplete or incorrect and augmenting the session type requires boilerplate workarounds+107
No built-in UI components — you have to build every login page, profile page, and sign-out button yourself from scratch+94