Compare software

FusionAuthOry Kratos
Freemium

Free Community edition to download, with paid plans and hosted deployments.

 Free

Free to self-host; Ory also sells a hosted version through Ory Network.

Web, Self-hosted Self-hosted
  • Can run self-hosted, on-premises or air-gapped
  • Supports SSO, MFA, OAuth2 and OpenID Connect
  • Supports passkeys, social sign-in, OIDC, SAML and TOTP
  • API-first design leaves the login UI fully under your control
  • Aimed at developers building apps rather than managing staff accounts
  • Advanced features require paid plans
  • Headless, so you must build or adopt your own login pages
  • Aimed at developers rather than end users
Self-hosted, Hosted service Self-hosted
Closed source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 24, 2026

Checked October 1, 2026

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