Simplify File Cleanup with Smarter Deduplication
Product UpdateFile Comparison Tools
DiffDog 2025 Release 2 enhances duplicate file management with powerful new options for safe and efficient cleanup.
Altova DiffDog
Compare and merge files, folders, and databases with XML-aware precision.
- Compare text, source code, XML, JSON, Word docs, and database schemas.
- Synchronize folders and generate detailed diff reports in various formats.
- Support bi-directional merging and 2- or 3-way file comparisons.
Prices from:
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| Available as | Our Price |
|---|---|
| Altova DiffDog Professional Edition | Loading |
| Altova DiffDog Enterprise Edition | Loading |
| Also available in | |
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| Altova MissionKit Enterprise Edition | Loading |
Need help choosing? See How to Buy and Specification
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Altova DiffDog delivers comprehensive comparison and merging capabilities for diverse data types including source code, XML, JSON, Microsoft Word documents, CSV, and database content or schemas. It offers precise synchronization for directories and archives, coupled with intelligent XML-aware diff features. DiffDog ensures detailed version control and data integration across local, network, and remote environments.
File Comparison and Merging
DiffDog supports two- and three-way comparisons of text-based files, including Unicode and ASCII formats. It provides synchronous scrolling, syntax coloring, unlimited undo, and automatic backups. Bi-directional merging enables efficient resolution of changes, with direct editing of compared files.
XML-Aware Diff and Editing
Leveraging XMLSpy technology, DiffDog performs intelligent XML comparisons recognizing namespace variations, attribute order, and child element arrangements to detect logical equivalences. It includes validation, code completion, and displays XML in advanced text or hierarchical grid views for clear navigation.
Folder and Directory Synchronization
The software compares folders and directories side-by-side, supporting quick, text, XML, binary, and extension-based comparison modes. It enables one-step synchronization across local drives, networks, and remote FTP or HTTP servers, with previewed synchronization actions before committing changes.
Database Content and Schema Comparison
DiffDog compares and merges database structures and contents across major SQL databases such as SQL Server, MySQL, Oracle, PostgreSQL, and more. It visualizes table and column mappings, resolves datatype differences, and produces SQL scripts to apply merges safely.
Support for Specialized File Formats
The diff tool handles Microsoft Word documents with embedded Word windows for side-by-side comparison and direct content editing. It also compares CSV files to databases and supports detailed differencing of compressed ZIP archives and OOXML files.
Diff Reports and Automation
Users can generate diff reports in text, XML, or HTML formats to document changes in files or directories. For high-volume and automated processing, DiffDog Server offers parallelized diff report generation for files, folders, and URLs.
Three-Way File Comparison Mode
DiffDog facilitates resolving concurrent edits by comparing three files together, displaying differences relative to a common ancestor.
User Interface and Productivity Features
The interface provides synchronized vertical and horizontal scrolling, customizable color highlighting, and bookmarks. It remembers comparison settings for reuse.
Product Compatibility
Review the details below to ensure this product is supported within your environment.
Operating System
- Windows Desktop
- Windows Server
Windows Desktop Version
- Windows 11
- Windows 10
Windows Server Version
- Windows Server 2025
- Windows Server 2022
- Windows Server 2019
- Windows Server 2016
How to Buy
Altova DiffDog is offered in two editions, each with a progressive set of features.
Altova DiffDog Professional Edition
- IncludedHighlight text differences
- IncludedMerge and edit files
- IncludedAdvanced XML comparison options
- IncludedFind duplicate files
- Not includedThree-way file comparison
- Not includedCompare via FTP/HTTP
- Not includedGenerate XSLT transformations
Altova DiffDog Enterprise Edition
- IncludedHighlight text differences
- IncludedMerge and edit files
- IncludedAdvanced XML comparison options
- IncludedFind duplicate files
- IncludedThree-way file comparison
- IncludedCompare via FTP/HTTP
- IncludedGenerate XSLT transformations
Altova DiffDog is also included in Altova MissionKit Enterprise edition which includes Altova XMLSpy, MapForce, StyleVision, and other market-leading products for building today’s real-world software solutions.
Optimize Storage with Duplicate Detection
Product UpdateData Mapping Tools
DiffDog 2025 enables efficient file management by finding and removing duplicate files, enhancing data integrity and streamlining workflows.
About Altova
Altova, founded in 1992 and headquartered in Vienna, Austria, specializes in creating software components and developer applications for XML, JSON, SQL, UML, and data integration. Its portfolio features the well-known XMLSpy graphical schema designer, MapForce for data mapping, StyleVision for report design, and the MissionKit suite for cross-platform development.
With several million users, including a significant share of Fortune 500 companies, Altova's products are known for supporting a wide range of data, database, and compliance scenarios. Its components and frameworks are valued for being standards-based, platform-independent, and suitable for technical professionals in real-world scenarios.
As official and authorized distributors since 2004, ComponentSource supplies you with legitimate licenses directly from Altova.