FusionAuth Alternatives

Auth0 is a program for people to get authentication and authorization services for their own business use.

Open Source Identity and Access Management for modern Applications and Services.

Membership Management for Notion → Connect your Notion page to a custom domain and Manage Membership access with Password Protection, Email Signups, Email Whitelists, and more.

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Enterprise-grade identity management for all your apps, users & devices

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

Loginradius is a cloud-based customer identity and access management platform. LoginRadius empowers businesses to deliver a delightful customer experience without compromising security.

Developer-first Access Management

Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …

On-demand SSO, directory integration, user provisioning and more

FreeRADIUS is responsible for authenticating one third of all users on the Internet.

Central authentication & authorization for web and mobile applications with Single Sign On, OAuth2 and LDAP

Authelia is an open-source authentication server providing SSO and two-factor for your applications running behind NGINX.

An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core

Really simple VPN to browse the web privately & anonymously.