Download DiffDog Server

Use this page to download Version 2025.

Clicking on any Download button on this page, as well as downloading and/or installing the server software, constitutes acceptance of the Altova Server EULA.

Altova DiffDog Server 2025

automates generation of diff reports comparing files and directories on high-performance servers.

Start a FREE 30-day trial or activate with your purchased license

Altova LicenseServer

provides license management for Altova server and desktop products. Note: the LicenseServer is included in the DiffDog Server installation package for Windows; you only have to download it separately for Linux and MacOS X.

Free Download

VM Template for Azure

To aid those deploying Altova Server Software products in the cloud, a free Azure virtual machine template is available in the Azure Marketplace. This template installs the complete line of Altova server software products, including DiffDog Server and the free LicenseServer, on the VM that you specify in the Azure cloud. Once you install the template, activate the desired products using the installed Altova LicenseServer to either request free, 30-day trial(s) or upload purchased licenses.

Previous Releases of DiffDog Server

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:

Software Release
Language

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.