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Authelia vs Zitadel: catalog facts
Authelia	Zitadel
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Open source for self-hosting, with a hosted service that has a free starting plan and paid…
Linux, Web, Self-hosted	Web, Self-hosted
Puts authentication and 2FA in front of applications that have none Fine-grained rules per domain, path, user and group	Self-hostable, with deployment documentation Built-in MFA, passwordless and social login
Requires a supported reverse proxy configured correctly to be secure Configuration is a large YAML file with many interacting options	Aimed at developers integrating identity into applications Running it yourself means operating an identity service
Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: Apache-2.0	License not stated
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 22, 2026	Official website Full listing and sources Checked September 23, 2026

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