open solutions for the real estate industry

Open Source

Our Open Source Projects

The following Open Source components were developed as part of the OpenEstate project. All these components are published at our GitHub project page.


  • a set of Java libraries to read and write common real estate formats
  • License: Apache License 2.0
  • Further informations:


  • a Java client library for the REST-Webservice of ImmobilienScout24.de
  • License: Apache License 2.0
  • Further informations:


  • These scripts are used by OpenEstate-ImmoTool to publish real estates at a website.
  • License: GNU General Public License 3
  • Further informations:

OpenEstate-PHP-Wrapper für CMS made simple

OpenEstate-PHP-Wrapper für Joomla

OpenEstate-PHP-Wrapper für WebsiteBaker / BlackCat CMS / LEPTON CMS

OpenEstate-PHP-Wrapper für WordPress


  • An ImmoTool-Addon, that illustrates basic steps to create custom addons.
  • License: Apache License 2.0
  • Further informations:

Supported Open Source Projects

Besides development of our own Open Source components we are participating in the following projects.


Further Open Source Development

During further development we plan to release more components under an Open Source license – e.g.:

  • specifications of OpenEstate-Standard
  • reference implementations of OpenEstate-Standard in different programming languages
  • Java libraries for reading / writing different real estate standards
  • framework of OpenEstate-ImmoTool
  • addons for OpenEstate-ImmoTool
  • example addon for OpenEstate-ImmoTool, that illustrates the development of custom addons
  • further Java libraries, that were developed / modified for OpenEstate-ImmoTool