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Ory Kratos vs Rauthy: catalog facts
Ory Kratos	Rauthy
Free Free to self-host; Ory also sells a hosted version through Ory Network.	Free Free and open source.
Self-hosted	Web, Self-hosted
Supports passkeys, social sign-in, OIDC, SAML and TOTP API-first design leaves the login UI fully under your control	OIDC and OAuth 2 single sign-on PAM support for Linux logins
Headless, so you must build or adopt your own login pages Aimed at developers rather than end users	Smaller community than established IAM servers Requires running and maintaining your own server
Self-hosted	Self-hosted
Open source	Open source
License not stated	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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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