7 alternatives · Authentication & Identity
Best alternatives to NextAuth.js in 2026
NextAuth.js, now evolving as Auth.js, is the most widely used open-source authentication solution for Next.js applications. It provides built-in providers for 50+ OAuth services, database adapters for Prisma, Drizzle, Supabase, and others, and session management via JWTs or database sessions. It is completely free, self-hosted, and keeps all user data in your own database with no per-user fees.
What is NextAuth.js?
Why look for NextAuth.js alternatives?
NextAuth requires more implementation work than managed services like Clerk or Auth0 — you handle your own database, email templates, and session storage. It also lacks pre-built UI components, so you build your own login forms. Teams that want to move faster on auth typically choose a managed service instead.
7 alternatives to NextAuth.js
Secure access for everyone. But not just anyone.
Auth0 is a flexible, drop-in authentication and authorization platform supporting social login, MFA, SSO, and enterprise identity providers. Now part of Okta, it is one of the most widely deployed auth solutions for web and mobile applications.
More than a login box. Complete user management.
Clerk provides pre-built UI components, APIs, and a dashboard for user authentication and management. It handles login, registration, user profiles, organizations, and session management with minimal setup, and is particularly popular with Next.js developers.
Open-source Firebase alternative with built-in auth.
Supabase Auth is the authentication layer built into Supabase, supporting email/password, magic links, social OAuth, phone OTP, and SSO. It integrates directly with Supabase's Postgres database and RLS policies for row-level security.
Simple, free multi-platform sign-in.
Firebase Authentication provides backend services and SDKs for authenticating users across web, iOS, Android, and Unity. It supports email/password, phone auth, and social providers, and integrates directly with other Firebase and Google Cloud services.
Identity for the internet. Secure every digital interaction.
Okta is the leading enterprise identity platform providing workforce and customer identity solutions. It covers SSO, MFA, lifecycle management, and advanced security policies for large organizations with complex compliance requirements.
Add enterprise features in minutes, not months.
WorkOS provides APIs for adding enterprise SSO (SAML), directory sync (SCIM), audit logs, and fine-grained authorization to SaaS products. It is designed for B2B SaaS companies that need to close enterprise deals requiring these compliance features.
The developer-first authentication platform.
Stytch is a developer-first authentication platform focused on passwordless login methods — magic links, one-time passcodes, biometrics, and passkeys. It offers both hosted UI and headless APIs for fully custom authentication experiences.
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Frequently asked
Is NextAuth.js free?
Yes. NextAuth.js is open-source and completely free with no per-user fees. Your only costs are the infrastructure for your own database and server. This makes it the most cost-effective option at any scale.
What is the difference between NextAuth.js and Auth.js?
Auth.js is the framework-agnostic evolution of NextAuth.js, supporting not just Next.js but also SvelteKit, SolidStart, and other frameworks. NextAuth.js v5 is built on top of Auth.js. The project is actively maintained under the Auth.js name.
Does NextAuth require a database?
NextAuth supports both JWT sessions (no database required) and database sessions (requires a supported database adapter). JWT mode is simpler to set up; database sessions enable features like multi-device session management and instant revocation.
How does NextAuth compare to Clerk?
NextAuth is free and gives you full control over your data. Clerk is a paid service with pre-built UI components and managed infrastructure. NextAuth requires more setup; Clerk requires less but adds cost and vendor dependency. Budget-conscious founders often start with NextAuth; teams prioritizing speed choose Clerk.
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