Altova DiffDog Professional - Upgrade from previous version

Compare and merge tool.

Published by Altova
Distributed by ComponentSource since 2004

Prices from: US$ 113.75 Version: 2026 Updated: Oct 21, 2025

Screenshot of Altova DiffDog Professional - Upgrade from previous version

Altova DiffDog Professional - Upgrade from previous version

Altova DiffDog Professional Edition allows you to diff/merge of text files, folders, and directories. It also includes XML-aware comparison options.

Altova DiffDog Professional - Upgrade from previous version

XML DifferencingWhen you select two XML files to compare, DiffDog opens them side-by-side and indicates differences with colored highlighting and connecting lines. XML-conformant syntax coloring is supported, as well.
XML DifferencingWhen you select two XML files to compare, DiffDog opens them side-by-side and indicates differences with colored highlighting and connecting lines. XML-conformant syntax coloring is supported, as well.
File Differencing
File Differencing
Folder Differencing
Folder Differencing
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XML DifferencingWhen you select two XML files to compare, DiffDog opens them side-by-side and indicates differences with colored highlighting and connecting lines. XML-conformant syntax coloring is supported, as well.
File Differencing
Folder Differencing

Altova DiffDog Professional Features

File Comparison

  • Compare any two text files and indicate differences with colored highlights and connecting lines.
  • Bi-directional merging of individual differences and direct editing of files in comparison window.
  • Unlimited Undo/Redo for editing and merging.
  • Saves file selections in a comparison settings document for reload later.

XML Comparison

  • Multiple options for XML-aware comparisons, such as entity resolution, ignore attribute order, etc.
  • Well-formedness...
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Latest News

Altova DiffDog Professional Edition 2020
Altova DiffDog Professional Edition 2020
October 9, 2019New Version
Now supports SQL Server 2019, Access 2019 and Oracle 19 for database comparisons.
Altova DiffDog Enterprise Edition 2017 Release 3
Altova DiffDog Enterprise Edition 2017 Release 3
April 7, 2017New Version
Adds new Find bar and Windows Server 2016 support.

Prices from: US$ 113.75

Installed User Licenses - Installed User licenses are purchased per number of computers on which you would like to install the software. For example, if you purchase a 10 Installed User license, you...
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Operating System
  • Windows 10 and Windows 11, as well as Windows Server versions 2016, 2019, 2022, and 2025.
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