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Keycloak vs Logto: catalog facts
Keycloak	Logto
Free Free and open source under the Apache 2.0 licence.	Freemium Open source to self-host; the cloud service is free up to 50K monthly active users, then…
Self-hosted	Web, Self-hosted
Single sign-on and single sign-out across applications Supports OpenID Connect and SAML 2.0 identity brokering	Supports OIDC, OAuth 2.1 and SAML Multi-tenancy, enterprise SSO and RBAC built in
Setting it up and securing it takes real administrative effort More than most single-user homelabs need	Aimed at developers integrating auth into apps Cloud usage beyond the free tier is billed
Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: Apache-2.0	License: MPL-2.0
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 October 1, 2026

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