Use this page to download Version 2021 Release 2 SP1.
If you need to access previous software releases (e.g., to reinstall a previously purchased product after a hardware failure), you can access older versions of DiffDog Server here:
Free Trial Evaluation Information
To start your free, 30-day trial, simply download and install the server software you wish to evaluate, along with the free Altova LicenseServer.
Provided free-of-charge, the LicenseServer will allow you to request and manage free trial keycode(s). Upon request you will receive an email with your personalized evaluation keycode, which will unlock the software for 30 days.
All you need to do is install one instance of the Altova LicenseServer on your network and access it from any browser to request new evaluation licenses, enter purchased licenses, and assign them from one central web-based management console to any of the servers on your network.
Instructions for requesting a free server trial using Altova LicenseServer are available here.