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Altova DiffDog Professional Edition v2026

Web Development :: XML/CSS Tools

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Altova DiffDog Professional Edition is the powerful diff / merge tool for files and folders. This easy-to-use synchronization tool quickly compares and merges source code and text-based files or directory pairs via its elegant visual interface. 2-way and 3-way comparison modes are supported. DiffDog provides advanced XML-aware differencing and editing capabilities based on those popularized in Altova XMLSpy, and integrates with any version control system that supports external differencing applications. For optimal efficiency, you can edit content directly within its differencing display, merge changes, and instantly re-compare. Intelligent syntax-coloring, line numbering, indentation guides, folding margins, and other innovative features assist in comparing source-code and XML files. DiffDog tells you when XML files are semantically equal even if they are not identical in a text-based comparison. Its XML differencing capabilities include DTD/schema-based validation, well-formedness checking, intelligent entry helpers, optional entity resolution, consideration of attribute and child element ordering, and more. DiffDog lets you examine and compare OOXML documents with XML-aware functionality. DiffDog also performs powerful directory comparisons. DiffDog can intelligently apply special comparison rules based on each file type, and open and edit file pairs directly from the directory comparison view. DiffDog even inspects Zip archives to compare and merge contents based on the original file types. DiffDog lets you selectively move files into target directories or synchronize entire directories in a single step. With all this, you can reconcile source code, XML, or binary file versions, or sync your laptop and desktop computers in a single step. Let DiffDog Professional Edition track down the differences in your essential development and data integration projects.

Specifications:

Version: v2026
Author: Altova, Inc.

License: Demo
File Size: 42 MB
Last Virus Scan: 2025-11-18
Downloads: 226
Views: 212
Price: $129.00

Installer: Install and Uninstall
Released: 10-21-2025

Recent Changes:
Bug fixes and other enhancements

Tags:
compare files compare xml diff diff/merge differencing database comparison database merging diff files diff source code file comparison file differencing merge files compare text xml differencing

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Runs on:

Windows 10

Requirements:

FOLDERMATCH 4.2.2

System Utilities :: File & Disk Management
FolderMatch makes it quick and easy to compare and synchronize the contents of any two files or folders. Whether you're trying to keep files and folders organized on a desktop computer, performing backups to removable disks, synchronizing rapidly changing laptop data with your main computer, or doing network file maintenance, FolderMatch offers one-button synchronization for the novice, and a range of sophisticated tools for the advanced user.
Windows | Shareware
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ECMERGE PRO (WINDOWS) 2.5

Development :: Other
ECMerge compares and merges local, FTP/S and SFTP folders for texts, binaries and images, side-by-side or 3-way. It colours syntax for many languages, supports many office and archive formats, pretty prints XML. Differences are computed at line, word or character level to help you find small changes quickly. It generates many reports formats, including XML. It outperforms most SCC differenciation tools. Also runs on Linux, OS X&Solaris
Windows | Shareware
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ECMERGE STANDARD (BUNDLE) 2.5

Development :: Other
ECMerge compares and merges local, FTP/S and SFTP folders for texts, binaries and images, side-by-side. It colours syntax for many languages, supports many office and archive formats, pretty prints XML. Differences are computed at line, word or character level to help you find small changes quickly. It generates many reports formats, including XML. It outperforms most SCC differenciation tools.
Windows Linux | Shareware
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AJC DIFF 2.2.0

System Utilities :: Other
This program compares two files. Files can be compared as text or binary, a feature unique to AJC Diff. Files can be shown combined or side by side. You can view the full diff, context diff or differences only. You can jump between next or previous difference. Differences are colour coded and colors can be set in the options. You can choose to show line numbers. There are text search and print options.
Windows | Shareware
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