Best 20+ Web3Auth Alternatives in 2025

Better Auth is a framework-agnostic authentication library that runs directly in your application. It handles user accounts, login sessions, and security features without relying on external services. You keep full control of your user data because everything runs on your own database and server.

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.

Kinde is an all-in-one platform that handles authentication and user management for your applications. It lets you add secure login systems, manage user permissions, organize customers into groups, and track feature access all from one dashboard.

Clerk is an authentication platform that handles all aspects of user identity and access control. You get pre-built login screens, user profile pages, and account management tools that you can customize to match your brand. Unlike basic auth solutions, Clerk provides advanced features out of the box.

FusionAuth is a complete authentication system that manages who can access your application and what they can do. You can install it on your own computer, your company servers, or use their cloud service. This flexibility makes it different from most authentication tools that force you to use only their cloud.

Stack Auth is a complete authentication solution that handles all the complex parts of user login and management. When you add it to your application, you get ready-made login pages, account settings, password reset flows, and user dashboards without writing code for these features yourself.

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.

MojoAuth is a tool that lets users log into apps and websites without typing passwords. It offers several ways to verify who you are, such as sending a special link to your email, texting a code to your phone, or using your fingerprint or face scan.

LoginRadius is a tool that handles user identity and login management for your digital products. When someone visits your website or app, LoginRadius manages their registration, login, and account security. It offers multiple ways for users to sign in, including traditional passwords, social media accounts like Google or Facebook, or passwordless options like magic links.

SuperTokens is an authentication framework that handles user login, registration, and session management for your applications. It provides ready-made solutions for email password login, social login through providers like Google and Facebook, passwordless authentication using magic links or one-time codes, and more.