The current version of Holodeck B2B is 4.1 released under the GNU GPL 3 license. This version includes P-Mode validation, security (signing and encryption), the possibility to add AS2 messaging support with the new AS2 extension and many other features.


The quickest way to get Holodeck B2B is by downloading the binary from the GitHub website:

Download Holodeck B2B

The binary package does not include a Java runtime. You will need to install a JRE version 8 or later to run Holodeck B2B.


Want to learn about the Holodeck B2B internals, help with development or create your own extension? Have a look at the source code or check out the sources via
git clone

Getting started

Looking for help? You can find a quick-start guide and more information about configuring message exchanges under Documentation. There’s also lots of information in the code comments.

Still left with questions? We offer a support contract providing you help directly from the developers. Contact us!