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Best Single Sign-On Software in 2026

Updated

29 single sign-on software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

29ranked
0free plans on this page
4 Oct 2026last checked
  1. 26

    BIO-key PortalGuard

    5.5
    WebWindowsmacOS
    Free plan
    No
    RecognisedDocumentedFree planPlatforms
    About BIO-key PortalGuardVisit site
  2. 27

    Keycloak

    5.5
    WebWindowsLinux
    SSO protocols
    OpenID Connect, OAuth 2.0, SAML 2.0
    RecognisedDocumentedFree planPlatforms
    About KeycloakVisit site
  3. 28

    WSO2 Identity Server

    5.5
    Free plan
    Yes
    SSO protocols
    OAuth, OpenID Connect, SAML 2.0
    RecognisedDocumentedFree planPlatforms
    About WSO2 Identity ServerVisit site
  4. 29

    WorkOS

    5.4
    Web
    Free plan
    Yes
    SSO protocols
    SAML, OIDC
    RecognisedDocumentedFree planPlatforms
    About WorkOSVisit site

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