Auth.js vs Frontegg: 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.
Frontegg
Frontegg is a user management platform for B2B SaaS that provides ready-to-use login systems, user roles, and secure access controls.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Frontegg
Frontegg is a user management platform for B2B SaaS that provides ready-to-use login systems, user roles, and secure access controls.
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
Frontegg
Authentication with social logins and SSO support
User role and permission management
Multi-tenant account structure
Two-factor authentication and security policies
Self-service admin portal for end users
Session management and access controls
API tokens and webhook integrations
Customizable login page designs
User invitation and onboarding flows
GDPR and SOC2 compliance ready
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.
Frontegg
Frontegg offers three main pricing tiers to fit different business needs. The Launch plan is free forever and perfect for development teams. You get 7,500 monthly active users, 50 customer accounts, and 5 single sign-on connections. It includes login pages, social logins, user roles, and security features with no watermark.
The Scale plan uses custom pricing based on your usage. It adds unlimited users, customer accounts, and SSO connections. You also get advanced multi-tenant features, security policies, session management, custom domains, and multiple environments for testing and production.
The Enterprise plan provides white-glove support with a dedicated Slack channel, onboarding assistance, unlimited environments, custom agreements, HIPAA compliance options, and guaranteed uptime agreements. Pricing is customized based on your specific requirements and usage levels.