Keycloak - Open Source Identity and Access Management for modern Applications and Services.
ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.
Pagekite - Bring your localhost servers on-line.
OpenLDAP - OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol.
Gotty - GoTTY is a simple command line tool that turns your CLI tools into web applications.