FusionAuth

FusionAuth is an authentication and user management platform that provides robust Customer Identity and Access Management (CIAM) capabilities for developers, enterprises, and SaaS applications. It offers a suite of features including multifactor authentication, single sign-on (SSO), API-first integrations, biometric authentication, passwordless login, social logins, advanced threat detection, and extensive customization and extensibility. FusionAuth is suitable for companies needing scalable and secure identity management, with options for self-hosting or cloud deployment.