Auth.js vs PropelAuth: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
PropelAuth
PropelAuth is a managed authentication service for B2B companies that handles signup, login, team management, and enterprise security features.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
PropelAuth
PropelAuth is a managed authentication service for B2B companies that handles signup, login, team management, and enterprise security features.
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
PropelAuth
Hosted signup and login pages with custom branding
Organization and team management tools
Social login with Google, GitHub, and more
Two-factor authentication for security
Enterprise SSO with SAML and SCIM
Role-based access control and permissions
User impersonation for customer support
API key management and authentication
Magic link passwordless login
Custom domain support
Waitlist user management
Transactional email handling
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.
PropelAuth
PropelAuth offers transparent pricing plans that grow with your business. The free plan includes 10,000 monthly active users, unlimited organizations, and core features like two-factor authentication and role-based access control. This plan is perfect for startups getting started.
The Growth plan costs $150 per month and includes everything in Free, plus user impersonation, unlimited enterprise SSO connections, a separate staging environment, and API key management. Additional users beyond 10,000 cost $0.05 each with volume discounts available.
The Growth Plus plan is $500 per month and adds SCIM directory sync, advanced organization controls, and enhanced security options for companies with stricter requirements.
All plans include unlimited organizations, waitlist users, custom domains, and customizable user interfaces. Enterprise customers can contact the sales team for custom pricing and features.
