Alternatives to: Google Cloud Identity

Authelia is a lightweight, Open Source IAM solution providing multi-factor authentication and single sign-on for web applications.

Authentik is a self-hosted, open-source identity provider offering complete control, flexibility, and security for authentication and authorization.

Bare.ID provides a secure and user-friendly single sign-on platform with integrated multi-factor authentication, ensuring compliance and offering flexible deployment options.

Casdoor is an open-source, UI-first IAM/SSO platform supporting OAuth 2.0, OIDC, SAML, and more.

cidaas is a leading cloud-based Customer Identity and Access Management (CIAM) platform providing secure and seamless user authentication and authorization.

Keycloak is an open-source identity and access management (IAM) solution providing centralized authentication and authorization for applications and services.

LemonLDAP::NG is a free, open-source web single sign-on and access management solution providing full AAA protection.

W'IDaaS is a cloud-based identity and access management platform offering secure, flexible, and easy-to-use user and application management.

WALLIX Trustelem IDaaS simplifies and secures identity and access management for digital and industrial environments.