Compare software

Zitadel vs authentik: catalog facts
Zitadel	authentik
Freemium Open source for self-hosting, with a hosted service that has a free starting plan and paid…	Free The software is free under its open-source licence. Hosting, hardware and external…
Web, Self-hosted	Linux, Self-hosted, Web
Self-hostable, with deployment documentation Built-in MFA, passwordless and social login	One server covers SAML, OAuth2/OIDC, LDAP and RADIUS, with a flow builder that lets you compose the login…
Aimed at developers integrating identity into applications Running it yourself means operating an identity service	The flow model is powerful but confusing at first, and some organisation-scale features sit in a paid enterprise…
Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.