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About NextAuth.js
Open-source auth library with provider-based architecture. Tight integration with Next.js and most OAuth providers.
Features
MAU Unlimited (self-hosted)
Cost Free (ISC license)
OAuth Providers 80+ built-in
Next.js Integration Native
Database Adapters Many
UI Components No (BYO)
Hosting Self-hosted
Open Source Yes (ISC)
Free tier limits
Unlimited users (self-hosted, free forever)