Auth.js vs Authorizer: 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.
Authorizer
Authorizer is a free, open-source authentication and authorization solution that lets you control your user data with your own database.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Authorizer
Authorizer is a free, open-source authentication and authorization solution that lets you control your user data with your own database.
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
Authorizer
Self-hosted open-source solution with full data control
11+ database support including SQL and NoSQL
Email, social media, and magic link login options
Multi-factor authentication for extra security
Pre-built login pages and admin dashboard
Role-based access management
Secure session handling with HTTP cookies
Webhooks for custom workflows
GraphQL and REST APIs available
Multiple SDKs for React, Vue, Angular, mobile apps
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.
Authorizer
Authorizer is completely free and open-source. There are no subscription fees, no per-user charges, and no hidden costs. You can download the software, deploy it on your own infrastructure, and use it for unlimited users without paying anything.
Free (Self-Hosted): Since Authorizer is open-source under the MIT license, you get all features included. You only pay for your own hosting costs (server, database, email service for verification emails). This could be as low as a few dollars per month on cloud providers like Railway, Heroku, Render, or DigitalOcean.
The project is maintained by an active community and accepts sponsorships on GitHub if you want to support development. You can also get community support through their Discord server and GitHub issues for free. This makes it perfect for startups and businesses that want to avoid the high costs of services like Auth0 that charge per user.