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bmaupin/open-source-sso.md

Last active April 11, 2024 09:36
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Comparison of some open-source SSO implementations
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open-source-sso.md

ⓘ This list is not meant to be exhaustive and is not guaranteed to be maintained. See the comments for updates and alternative options.

(Items in bold indicate possible concerns)

Keycloak WSO2 Identity Server Gluu CAS OpenAM Shibboleth IdP
OpenID Connect/OAuth support yes yes yes yes yes yes
Multi-factor authentication yes yes yes yes yes yes
Admin UI yes yes yes yes yes no
OpenJDK support yes yes partial² yes yes partial
Identity brokering yes yes yes
Middleware Quarkus WSO2 Carbon¹ Jetty, Apache HTTPD any Java app server any Java app server Jetty, Tomcat
Open source yes ⚠ nominally yes yes yes yes
Commercial support yes yes yes third-party yes third-party
Add federation metadata no yes yes
Add metadata from URL import only yes yes
Installation and configuration easy difficult difficult

  1. WSO2 Carbon appears to be based on Tomcat

  2. Gluu 4.0 comes bundled with Amazon Corretto, one specific distribution of OpenJDK. This is likely because it is built on top of Shibboleth, which only supports specific distributions of OpenJDK.

@d3btech
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d3btech commented Nov 7, 2022

How about adding Authelia in the list also?

@raph
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raph commented Sep 12, 2023

Authentik, Authelia and Zitadel should be added

@d3btech
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d3btech commented Sep 12, 2023

Ory Hydra is a promising project. Anyone here used Spring Authentication Server, need some expert reviews on the product.

@adriy-be
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adriy-be commented Feb 20, 2024 •
edited

Keycloak WSO2 Identity Server Gluu CAS OpenAM Shibboleth IdP ZITADEL Authentik Authelia lemonldap-ng logto
OpenID Connect/OAuth support yes yes yes yes yes yes yes yes yes yes yes
Multi-factor authentication yes yes yes yes yes yes yes yes yes yes yes
Admin UI yes yes yes yes yes no yes Yes yes yes
OpenJDK support yes yes partialý yes yes partial not needed not needed not needed
Identity brokering yes yes yes yes yes yes
Middleware Quarkus WSO2 Carbon? Jetty, Apache HTTPD any Java app server any Java app server Jetty, Tomcat CockroachDB Apache, Nginx, uwsgi, PSGI, FastCGI Express
Open source yes ? nominally yes yes yes yes yes (Apache 2.0) yes yes yes (GPL) yes (MPL-2.0 license)
Commercial support yes yes yes third-party yes third-party yes yes yes yes
Add federation metadata no yes yes no yes yes
Add metadata from URL import only yes yes yes yes yes
Installation and configuration easy difficult difficult easy/medium easy/medium easy

Authentik and Authelia should be verified and completed.
Thanks to

@coudot
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coudot commented Feb 20, 2024

Hello,

it seems that @LemonLDAPNG is missing, I add the data here and let you decide if you want to include it in the table:

  • OpenID Connect/OAuth support : yes
  • Multi-factor authentication : yes
  • Admin UI : yes
  • OpenJDK support : not needed
  • Identity brokering : yes
  • Middleware : Apache, Nginx, uwsgi, PSGI, FastCGI
  • Open source : yes (GPL)
  • Commercial support : yes (@Worteks)
  • Add federation metadata : yes
  • Add metadata from URL : yes
  • Installation and configuration : easy/medium

@mabujaber
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https://logto.io/
OpenID Connect/OAuth support : yes
Multi-factor authentication : yes
Admin UI : yes
OpenJDK support : not needed
Identity brokering : yes
Middleware : Express
Open source : yes (MPL-2.0 license)
Commercial support : yes
Add federation metadata : yes
Add metadata from URL : yes
Installation and configuration : easy

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