LDAP Tool Box Self Service Password is a PHP web application that lets users change their own password in an LDAP directory. It works with standard LDAPv3 servers such as OpenLDAP and also with Active Directory. Administrators define a password policy, such as minimum length, forbidden words and a reuse check. Users who have lost their password can reset it through security questions, a token sent by email or an SMS. Users can also update their SSH key, email and phone number, and a REST API is available. It is delivered as a tarball, Debian and Red Hat packages, or a Docker image.
Self Service Password belongs to the LDAP Tool Box project, which describes itself as a set of tools for LDAP administrators. The project website is hosted by Worteks, a company based in Paris, France. The source code is published on GitHub under the GPL-3.0. You run the application on your own server next to your own directory, so passwords and user data stay within your own infrastructure. No project-run hosted service is mentioned.