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 ...

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Nokia Nokia Corporation (natively Nokia Oyj, referred to as Nokia) is a Finnish multinational telecommunications, information technology, and consumer electronics corporation, established in 1865. Nokia's main headquarters are in Espoo, Finlan ...

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the devel ...

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Free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, ...

, , , , 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. ...

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Microsoft Microsoft Corporation is an American multinational corporation, multinational technology company, technology corporation producing Software, computer software, consumer electronics, personal computers, and related services headquartered at th ...

, , 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, , 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 , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

, , 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 The Facebook Platform is the set of services, tools, and products provided by the social networking service Facebook for third-party developers to create their own applications and services that access data in Facebook. The current Faceboo ...

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Facebook Facebook is an online social media and social networking service owned by American company Meta Platforms. Founded in 2004 by Mark Zuckerberg with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin ...

, , 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, , 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 Java Open Single Sign On (JOSSO) is an open source Identity and Access Management (IAM) platform for rapid and standards-based Cloud-scale Single Sign-On, web services security, authentication and provisioning. See also * Shibboleth (Internet ...

, , JOSSO, , Free Software, , , , Open Source Single Sign-On Server , - , Keycloak
(Red Hat Single Sign-On), , Red Hat, , 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 Social login is a form of single sign-on using existing information from a social networking service such as Facebook, Twitter or Google, to sign into a third party website instead of creating a new login account specifically for that website. It i ...

, Federated SSO(SAML 1.1, Saml 2.0, Oauth2, JWT, Multipass, etc.), and Web single sign on. , - ,

Microsoft account A Microsoft account or MSA (previously known as Microsoft Passport, .NET Passport, and Windows Live ID) is a single sign-on Microsoft user account for Microsoft customers to log in to Microsoft services (like Outlook.com), devices running on ...

, , Microsoft, , Proprietary, , , , Microsoft single sign-on web service , - , myOneLogin, ,

VMware VMware, Inc. is an American cloud computing and virtualization technology company with headquarters in Palo Alto, California. VMware was the first commercially successful company to virtualize the x86 architecture. VMware's desktop software ru ...

, , 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 p ...

, , 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. is a cloud-based identity and access management (IAM) provider that develops a unified access management (UAM) platform to enterprise-level businesses and organizations. It was founded in 2009 by brothers Thomas Pedersen and Chri ...

, , OneLogin Inc., , Proprietary, , Yes, , Cloud-based identity and access management with single sign-on (SSO) and active directory integration , - ,

OpenAthens OpenAthens is an identity and access management service, supplied by Jisc, a British not-for-profit information technology services company. Identity provider (IdP) organisations can keep usernames in the cloud, locally or both. Integration with ...

, , 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 The Common Development and Distribution License (CDDL) is a free and open-source software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL). Files licensed under the CDDL can be combined with files licensed under ot ...

, , Yes, used in conjunction with OpenDJ and OpenIDM, , Access management, entitlements and federation server platform , - ,

Oracle Identity Management Oracle Identity Management, a software suite marketed by Oracle Corporation, provides identity and access management (IAM) technologies. The name of the software suite closely resembles the name of one of its components, Oracle Identity Manager. ...

, , Oracle Corporation, , Proprietary, , Yes, , Identity and Access Management Suite of products from Oracle , - , SecureLogin, ,

NetIQ 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 p ...

, , Proprietary, , , , Enterprise Single-Sign-On , - ,

Shibboleth A shibboleth (; hbo, , šībbōleṯ) is any custom or tradition, usually a choice of phrasing or even a single word, that distinguishes one group of people from another. Shibboleths have been used throughout history in many societies as passw ...

, , 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 Corporate Server (UCS) is a server operating system derived from Debian with an integrated management system for the central and cross-platform administration of servers, services, clients, desktops and users as well as virtualized comp ...

, , Univention, , Free & Open Source, , , , Enterprise IAM with single sign-on using

SAML Security Assertion Markup Language (SAML, pronounced ''SAM-el'', ) is an open standard for exchanging authentication and authorization data between parties, in particular, between an identity provider and a service provider. SAML is an XML-based m ...

, - , WSO2 Identity Server, ,

WSO2 WSO2 is an open-source technology provider founded in 2005. It offers an enterprise platform for integrating application programming interfaces (APIs), applications, and web services locally and across the Internet. History WSO2 was founded ...

, , 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