Compare software

LemonLDAP::NGZitadel
Free

Free software with no licence cost.

 Freemium

Open source for self-hosting, with a hosted service that has a free starting plan and paid…

Self-hosted Web, Self-hosted
  • Supports CAS, SAML and OpenID Connect
  • Can bridge between different SSO protocols
  • Self-hostable, with deployment documentation
  • Built-in MFA, passwordless and social login
  • Self-hosted server that needs administration
  • Setup involves several components
  • 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: GPL-2.0 License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked September 23, 2026

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