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Ory is an open-source identity infrastructure composed of a set of tools and libraries that are designed to build secure and scalable authentication, authorization, and user management solutions.
Auth0 provides a comprehensive platform for authentication and authorization.
Free tier available. Paid plans start at $23/month.
Keycloak is an open-source Identity and Access Management solution aimed at modern applications and services.
Free and open-source
Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users to your app.
Free tier available, pay as you go pricing for higher usage
Okta is an identity management service that helps companies manage and secure user authentication into modern applications.
Custom pricing based on requirements
Clerk is a modern authentication and user management platform for developers.
Starting at $0/month
Portier is a user-friendly and secure self-hosted identity provider. It allows you to manage user authentication and authorization easily.
Free and open-source
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