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Keycloak

KeycloakOpen

Open-source identity and access management with single sign-on

Keycloak is open-source identity and access management software that adds login, single sign-on, and access control to apps and services on your own infrastructure.

Authentik

AuthentikOpen

Self-hosted open-source identity provider for modern SSO

Authentik is a self-hosted, open-source identity provider that adds single sign-on to web apps and services over SAML, OAuth2/OIDC, LDAP, and RADIUS.

Defguard

Defguard

Self-hosted WireGuard VPN with per-connection MFA and built-in SSO

Defguard is a self-hosted access platform that combines WireGuard VPN, identity management, and per-connection multi-factor authentication.