Authentication & SSO · European (self-hostable) (EU)
Keycloak
Red Hat's battle-tested open-source IAM — self-host in the EU for enterprise SSO.
The switch
Auth0 / Okta→Keycloakalso replaces AWS Cognito
About
Enterprise-grade open-source identity and access management from Red Hat (IBM). The most widely deployed self-hosted SSO solution in European enterprises and governments. Self-host on any EU server for full data sovereignty. OIDC, SAML, LDAP support.
Why we recommend it
- Apache 2.0 — self-host in any EU data centre
- OIDC, SAML 2.0, LDAP, Kerberos out of the box
- Used by EU governments, banks, and large enterprises
- Fine-grained authorisation and policy enforcement
- CNCF project — widely supported ecosystem
EU vs USA
Keycloak vs Auth0 / Okta
Side-by-side on jurisdiction, data residency, and the rules that decide who can actually read your data.
Criteria
🇪🇺 Keycloak
🇺🇸 Auth0 / Okta
Headquarters
Open source project — Red Hat (IBM), self-hosted
San Francisco, CA, USA
Jurisdiction
EU (GDPR) when self-hosted in EU
USA (CLOUD Act, FISA 702)
Data location
Your EU server
Global, US-controlled (AWS)
GDPR-native
Yes
No
CLOUD Act / FISA exposed
No
Yes
Ad tracking
No
No
End-to-end encryption
No
No
Open source
Yes
No
Ownership
Red Hat (IBM) — Apache 2.0 open source
Okta Inc. (NASDAQ:OKTA)
Founded
2013
2013
Compare head-to-head