Open-source login & identity

Replacing: Auth0

ProjectWhat it isStarsLast releaseReplaces
Keycloak
Active Apache-2.0		Open Source Identity and Access Management For Modern Applications and Services.37.6kOct 29, 2026Auth0
Authelia
Active Apache-2.0		The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.29.4kSep 17, 2026Auth0
authentik
Active Mixed or custom		An identity provider for single sign-on (SSO), multi-factor login and user management.26.2kOct 21, 2026Auth0
ZITADEL
Active AGPL-3.0		An identity and access management platform for adding login, SSO and user management to apps.15.5kOct 22, 2026Auth0