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ZitadelWSO2 Identity Server
Freemium

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

 Freemium

Open-source server is free to download; WSO2 lists paid pricing for its offerings.

Web, Self-hosted Web, Self-hosted
  • Self-hostable, with deployment documentation
  • Built-in MFA, passwordless and social login
  • SSO, adaptive MFA, passkeys and social login
  • Covers customer, workforce and AI agent identity
  • Aimed at developers integrating identity into applications
  • Running it yourself means operating an identity service
  • Broad feature set takes time to configure
  • Commercial pricing applies for paid offerings
Self-hosted, Hosted service 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

Checked September 23, 2026

Checked October 1, 2026

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