Auth.js vs Web3Auth: 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.
Web3Auth
Web3Auth is a simple wallet infrastructure that enables Web3 applications to provide secure, social login-based authentication for all users.
Auth.js
Auth.js is a free, open-source authentication library for web applications, supporting OAuth, magic links, and credentials across multiple frameworks.
Web3Auth
Web3Auth is a simple wallet infrastructure that enables Web3 applications to provide secure, social login-based authentication for all users.
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
Web3Auth
Social login with Google, Facebook, and more
Multi-Party Computation for secure key management
Customizable login interface and branding
Multi-factor authentication options
Gasless transactions through account abstraction
Pre-built wallet UI components
Support for all major blockchains
Mobile, web, and gaming platform SDKs
Fiat payment integration
NFT and token management tools
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.
Web3Auth
Web3Auth offers flexible pricing plans for different team sizes and needs. The service charges based on Monthly Active Wallets, which means the number of unique users who log in each month.
The Base plan is free and includes 1,000 Monthly Active Wallets with basic features like social logins and email authentication. Additional users cost $0.050 each. This works well for small projects and testing.
The Growth plan costs $69 per month and includes 3,000 free Monthly Active Wallets, then $0.045 per additional wallet. It adds white-label branding, custom authentication options, and passkey support.
The Scale plan is $399 monthly with 10,000 included wallets at $0.040 each after. It includes advanced features like wallet services, pre-generated wallets, and enhanced support.
Enterprise plans offer custom pricing with volume discounts, dedicated support, custom domains, and service level guarantees for large companies and applications.