Compare software

RauthyFusionAuth
Free

Free and open source.

 Freemium

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

Web, Self-hosted Web, Self-hosted
  • OIDC and OAuth 2 single sign-on
  • PAM support for Linux logins
  • Can run self-hosted, on-premises or air-gapped
  • Supports SSO, MFA, OAuth2 and OpenID Connect
  • Smaller community than established IAM servers
  • Requires running and maintaining your own server
  • Aimed at developers building apps rather than managing staff accounts
  • Advanced features require paid plans
Self-hosted Self-hosted, Hosted service
Open source Closed 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 Works offline

Checked October 1, 2026

Checked September 24, 2026

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