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Apereo CAS vs ZITADEL

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Apereo CASZITADEL
LanguageJavaGo
LicenceApache-2.0AGPL-3.0
Stars11k15k
Latestv8.0.2v4.19.4
Last push2026-10-062026-10-06
Release cadenceabout 9 days between releasesabout 2 days between releases
Active contributors5+ commit authors on the default branch in the last 90 days20 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Okta. Alternatives to Okta →

    PartialApereo CASWeb single sign-on over CAS, SAML and OpenID Connect with MFA, common in universities.

    PartialZITADELSSO for your own applications rather than a workforce app catalogue.