Login-Master is a Germany-developed identity and access management solution based on the open-source Keycloak platform. It provides authentication and registration, fine-grained access control, user lifecycle management, administration, auditing, and related identity functions for B2B, B2C, and B2X applications. The company offers the solution as self-hosted software or SaaS and positions it as a way to manage identities and authorisations while maintaining GDPR compliance.