Authentik vs Auth.js: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Authentik
Authentik is an open-source identity provider that offers secure single sign-on and access control for modern applications.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Authentik
Authentik is an open-source identity provider that offers secure single sign-on and access control for modern applications.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Authentik
Multiple protocol support (OAuth, SAML, LDAP, RADIUS)
Self-hosted and open source
Multi-factor authentication options
Social login integration
Customizable authentication flows
Web-based remote access (SSH, RDP, VNC)
Fine-grained access policies
Visual admin dashboard
API and automation support
Docker and Kubernetes deployment
Enhanced audit logging (Professional)
Enterprise integrations available
Auth.js
OAuth 2.0 and OpenID Connect support
80+ pre-configured authentication providers
Magic link email authentication
Username and password credentials
WebAuthn passwordless login
Multiple framework support (Next.js, SvelteKit, Express)
Database adapters for major databases
JWT or database sessions
Built-in security features
Custom page support
TypeScript ready
Open source and free
Authentik
Authentik offers three pricing tiers to match different needs:
Open Source (Free): Perfect for homelab users and simple setups. Includes all core authentication protocols, web-based remote access, support for both business and consumer use cases, and community Discord support. No cost and no limits on users.
Professional ($5/user/month): Adds enterprise functionality with enhanced audit logging for compliance, Google Workspace and Microsoft Entra ID integration, external OAuth and SAML source embedding, Chrome Enterprise Device Trust connector, and password history compliance checks. External users cost only $0.02 per month. Service accounts are free. Includes ticket-based support for subscriptions over $1,000. Billed annually.
Enterprise ($20,000+ annual): Designed for large organizations needing custom contracts. Includes everything in Professional plus dedicated customized support, volume discounts for thousands of users, and FIPS compliance for federal requirements.
Auth.js
Auth.js is completely free to use with no pricing tiers or hidden costs. As an open-source project, it is licensed under the ISC license, which allows anyone to use, modify, and distribute the software freely for both personal and commercial projects.
There are no subscription fees, no usage limits, and no charges for any features. All capabilities, including support for unlimited providers, database integrations, and advanced security features, are available at no cost. This makes Auth.js an excellent choice for projects of any size, from small personal websites to large enterprise applications.
The project is maintained by a community of contributors and is now part of Better Auth Inc. Developers can contribute to the project, report issues, and access community support through GitHub discussions completely free of charge.
