7 Best Free and Open Source Single Sign-On Software

Single Sign-On (sometimes known as SSO) is an authentication process that allows users to log in to multiple independent applications with a single set of credentials.

Single Sign-On software therefore provides a central login for all user accounts and IT systems. It modernizes the user experience by offering security and transparency.

The goal of this type of software is to make security simple so that it is easy for application developers to secure the apps and services they have deployed in their organization.

Other advantages include mitigating risk for access to third party sites, minimising password fatigue and streamlining administration. Additional benefits include reducing the time taken to re-enter password for the same identity, improving administrative control, improving the user experience, and reducing support calls.

Here’s our verdict on the finest SSO software. Only free and open source software is eligible for inclusion here.

Ratings chart

Click the links in the table below to learn more about each tool.

Single Sign-on Software
KeyCloakIdentity and access management solution for applications and services
CASEnterprise multilingual single sign-on solution
authentikIdentity provider that emphasizes flexibility and versatility
AutheliaAuthentication and authorization serve
WSO2 Identity ServerIdentity and Access Management solution
JanssenDigital identity platform
OpenAMAccess management solution that includes SSO
Best Free and Open Source SoftwareRead our complete collection of recommended free and open source software. Our curated compilation covers all categories of software.

The software collection forms part of our series of informative articles for Linux enthusiasts. There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

There are also fun things to try, hardware, free programming books and tutorials, and much more.
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1 month ago

What about authentik?

1 month ago

What about FreeIPA?

6 days ago

Did you also examine Shibboleth?