Auth.js vs Tesseral: 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.
Tesseral
Tesseral is an open-source authentication platform for B2B software that simplifies user management with 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.
Tesseral
Tesseral is an open-source authentication platform for B2B software that simplifies user management with 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
Tesseral
Customizable login pages with multiple authentication methods
SAML and OIDC single sign-on for enterprises
SCIM provisioning for automatic user management
Role-based access control with custom permissions
Multi-factor authentication with passkeys and security keys
API key management system
User impersonation for customer support
Comprehensive audit logs
Real-time webhooks
Open-source and self-hostable
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.
Tesseral
Tesseral offers three pricing tiers to match different needs and company sizes.
The Community plan is completely free for developers who want to host Tesseral themselves. Download the open-source code and run it on your own servers without any license fees. This includes all features with unlimited users and organizations.
The Studio plan is also free and provides a managed cloud service. It supports up to 200 active users and 50 organizations, making it perfect for small applications and testing. All authentication methods and enterprise features are included.
For larger applications, the Enterprise plan offers unlimited users and organizations. This plan includes running Tesseral on your own domain, API management, guaranteed uptime, and priority support. Pricing is customized based on your needs and includes options for managed cloud or custom deployment.
