Auth.js vs Logto: Features, Pricing and User Reviews 2026
Logto
Open-Source Authentication Platform with SSO and RBAC
Logto
Open-Source Authentication Platform with SSO and RBAC
What are Auth.js and Logto?
Auth.js is a complete authentication solution that works across different JavaScript frameworks. It provides everything needed to add secure login systems to websites and applications. You can let users sign in through their existing accounts on services like Google or GitHub, or you can use email-based magic links, or even traditional username and password combinations.
The library is runtime agnostic, meaning it adapts to work with Next.js, SvelteKit, Express, Qwik, and other frameworks. It handles session management, protects routes, and connects to databases when needed. Auth.js follows web standards and security best practices, making it both safe and reliable. Since it is open source, the code is publicly available for review and contributions from developers worldwide.
Logto is an authentication and identity management platform that handles user sign-in, permissions, and security for your applications. You can use it as a cloud service or install it on your own servers since it's open-source.
The platform supports multiple ways for users to sign in: traditional passwords, email codes, phone verification, social media accounts like Google and Facebook, or enterprise systems through Single Sign-On. It also includes advanced features like multi-factor authentication for extra security and role-based access control to manage what different users can do.
Logto works with over 30 programming languages and frameworks including React, Next.js, Vue, Python, and Go. It's trusted by companies worldwide and meets strict security standards with SOC 2 Type II certification.
Features of Auth.js and Logto
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
Multiple sign-in methods (password, email, SMS, social)
Enterprise SSO with SAML and OIDC
Multi-factor authentication for security
Role-based access control and permissions
Multi-tenancy for serving multiple organizations
API protection and machine-to-machine auth
Customizable sign-in interface and branding
Audit logs and user management
Open-source with cloud or self-hosted options
SDKs for 30+ frameworks and languages
Use Cases of Auth.js and Logto
Pricing of Auth.js and Logto
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.
Logto offers flexible pricing to fit different needs and budgets. The platform uses a token-based pricing model that's more affordable than competitors charging per user.
Free Plan: Start with up to 50,000 monthly active users at no cost. You get 50,000 tokens included, user authentication, machine-to-machine apps, audit logs, and basic features. Perfect for getting started and small projects.
Pro Plan ($24/month): Unlock advanced features including role-based access control, organizations for multi-tenancy, multi-factor authentication, enterprise SSO with SAML and OIDC, and third-party app integrations. You get 50,000 tokens included, then pay $0.08 per 100 extra tokens. Additional machine-to-machine apps cost $8 each, SAML apps cost $96 each, and API resources cost $4 each.
Enterprise Plan: Custom pricing for large teams with specific requirements. Includes custom data regions, dedicated computing resources, service-level agreements, premium support, and migration assistance.
Unlike competitors that charge per user, Logto's token-based pricing means unlimited monthly active users on the Pro plan, making it more cost-effective as your user base grows.
FAQs: Auth.js vs Logto
Reviews: Auth.js vs Logto
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