These are some of the notable Single Sign-On (SSO) implementations available: {, class="wikitable sortable" style="text-align: center;" ! Product Name ! Project/Vendor ! License ! Identity management platform ! Description , - ,

Accounts & SSO Accounts & SSO, accounts-sso, or lately gSSO is a single sign-on framework for computers. Originating as part of Maemo 5 Accounts-SSO is free software licensed under LGPL 2.1. Accounts-SSO was deployed as a standard component of Nokia N900, N ...

, , Nokia, Intel,… , , Free software , , , , Client-side implementation with plugins for various services/protocols , - ,

Active Directory Federation Services Active Directory Federation Services (AD FS), a software component developed by Microsoft, can run on Windows Server operating systems to provide users with single sign-on access to systems and applications located across organizational boundaries. ...

, , Microsoft, , Proprietary, , , , Claims-based system and application federation , - , , Bitium, , Bitium, , Proprietary, , , , Enterprise cloud-based identity and access management solution with single sign-on, active directory integration and 2-factor authentication options , -
BlockID1Kosmos
, Proprietary , , Enterprise Identity and Authentication platform supporting NIST 800-63-3 IAL3, AAL3, FIDO2 Passwordless Authentication, SAML2, oAUTH2, OpenID Connect and several other authentication standards. , - , CAS /

Central Authentication Service The Central Authentication Service (CAS) is a single sign-on protocol for the web. Its purpose is to permit a user to access multiple applications while providing their credentials (such as user ID and password) only once. It also allows web app ...

, , Apereo, , Free & Open Source ( Apache 2.0) , , , Protocol and open-source SSO server/client implementation with support for CAS, SAML1, SAML2, OAuth2, SCIM, OpenID Connect and WS-Fed protocols both as an identity provider and a service provider with other auxiliary functions that deal with user consent, access management, impersonation, terms of use, etc. Licensed under Apache 2.0. , - , CoSign single sign on, , University of Michigan, , Academic, , , , SSO for University of Michigan , - ,

Distributed Access Control System Distributed Access Control System (DACS) is a light-weight single sign-on and attribute-based access control system for web servers and server-based software. DACS is primarily used with Apache web servers to provide enhanced access control f ...

(DACS), , Distributed Systems Software, , Free Software, , , , , - , Facebook connect, , Facebook, , Proprietary, , , , Facebook SSO to third parties enabled by Facebook , - ,

FreeIPA FreeIPA is a free and open source identity management system. FreeIPA is the upstream open-source project foRed Hat Identity Management Overview FreeIPA aims to provide a centrally managed Identity, Policy, and Audit (IPA) system. It uses ...

, ,

Red Hat Red Hat, Inc. is an American software company that provides open source software products to enterprises. Founded in 1993, Red Hat has its corporate headquarters in Raleigh, North Carolina, with other offices worldwide. Red Hat has become ass ...

, , Free Software, , Yes, , , - ,

IceWall SSO IceWall SSO is a Web and Federated single sign-on software developed and marketed by Hewlett Packard Enterprise over the globe. Overview IceWall SSO was originally developed by HP Japan. Since its first release in 1997, IceWall SSO has see ...

, , Hewlett-Packard Enterprise, , Proprietary, , , , Web and Federated Single Sign-On Solution , - , IBM Enterprise Identity Mapping, , IBM, , Free software, , Yes, , Works with Kerberos (e.g. Active Directory) and other authentication mechanisms to map different identities and hence allow single signon to all IBM server platforms (Windows, Linux, PowerLinux, IBM i, i5/OS, OS/400, AIX) even when the user name differs. , - , LTPA, , IBM, , Proprietary, , , , , - , Imprivata OneSign, , Imprivata, , Proprietary, , , , , - , Janrain Federate SSO, , Janrain, , Proprietary, , Yes, , Social and conventional user SSO , - , JOSSO, , JOSSO, , Free Software, , , , Open Source Single Sign-On Server , - , Keycloak
(Red Hat Single Sign-On), ,

, , Open source, , Yes, , Federated SSO (LDAP and Active Directory), standard protocols (OpenID Connect, OAuth 2.0 and SAML 2.0) for Web, clustering and single sign on.
Red Hat Single Sign-On is version of Keycloak for which RedHat provides commercial support. , - , LoginRadius, , LoginRadius Inc., , Proprietary, , Yes, , Cloud-based Customer Identity and Access Management with User Registration, Social login, Federated SSO(SAML 1.1, Saml 2.0, Oauth2, JWT, Multipass, etc.), and Web single sign on. , - , Microsoft account, , Microsoft, , Proprietary, , , , Microsoft single sign-on web service , - , myOneLogin, , VMware, , Proprietary, , , , Cloud single sign-on , - ,

NetIQ Access Manager NetIQ is a product line within the CyberRes line of business at Micro Focus, which includes solutions focused on cybersecurity, including ArcSight, Fortify, Voltage, and NetIQ. NetIQ was previously based in Houston, Texas, with products that pr ...

, , Microfocus, , Proprietary, , Yes, used in conjunction with

NetIQ Identity Manager NetIQ is a product line within the CyberRes line of business at Micro Focus, which includes solutions focused on cybersecurity, including ArcSight, Fortify, Voltage, and NetIQ. NetIQ was previously based in Houston, Texas, with products that pr ...

, , Access Management, Federation and Risk-Based Access Control platform , - , Numina Application Framework, , Numina Solutions, , Proprietary, , Yes, , Single sign-on system for Windows (OpenID RP & OP, SAML IdP, and proprietary) , - , OneLogin, , OneLogin Inc., , Proprietary, , Yes, , Cloud-based identity and access management with single sign-on (SSO) and active directory integration , - , OpenAthens, , Jisc, , Proprietary, , Yes, , Identity and access management solutions to IdPs and SPs enabling access management to web-based resources. Fully hosted service with several directory integration options, dedicated support team. Maintains OpenAthens Federation. SAML 1.1, SAML 2.0, SSO, self-reg, compatibility with Shibboleth, API. , - , OpenAM, , Open Identity Platform Community, , CDDL, , Yes, used in conjunction with

OpenDJ OpenDJ is a directory server which implements a wide range of Lightweight Directory Access Protocol and related standards, including full compliance with LDAPv3 but also support for Directory Service Markup Language (DSMLv2). Written in Java, Open ...

and OpenIDM, , Access management, entitlements and federation server platform , - , Oracle Identity Management, , Oracle Corporation, , Proprietary, , Yes, , Identity and Access Management Suite of products from Oracle , - , SecureLogin, , NetIQ, , Proprietary, , , , Enterprise Single-Sign-On , - , Shibboleth, , Shibboleth, , Free & Open Source ( Apache 2.0), , , , SAML-based open source access control , - ,

Ubuntu Single Sign On Ubuntu Single Sign On (also known as Ubuntu SSO, Launchpad Login Service) is an OpenID-based single sign-on service provided by Canonical to allow users to log into many websites. On June 21, 2013, Canonical announced that Ubuntu Single Sig ...

, , Canonical Ltd., , Proprietary, , , , OpenID-based SSO for Launchpad and Ubuntu services , - , Univention Corporate Server, , Univention, , Free & Open Source, , , , Enterprise IAM with single sign-on using SAML , - , WSO2 Identity Server, , WSO2, , Free & Open Source ( Apache 2.0), , Yes, , SAML 2.0, OpenID, OpenID Connect, OAuth 2.0, SCIM, XACML, Passive Federation , - , ZXID, , ZXID, , Free Software, , Yes, , Reference Implementation of TAS3 security

See also