Altova DiffDog
Altova DiffDog: A specialist Windows diff tool for XML, database, folder, and three-way comparisons. Ranked #16 of 28 in Diff and Merge Tools by our editors (7.7/10); pricing: 30-day trial; best for XML and database comparison specialists.
At a glance
- Editor score7.7 / 10
- Pricing30-day trial
- Best forXML and database comparison specialists
- Free planNo
- Three-way mergeYes
- Founded1992 · Vienna, Austria; Marblehead, Massachusetts, United States
- Facts checked20 Sep 2026
Where it wins
- XML-aware comparison plus XML Schema and database support
- Two-way and three-way merging with folder synchronization
- Git integration and diff reports in text, XML, or HTML
Where it doesn't
- Windows-only desktop coverage
- No free plan; the product is paid
- Enterprise-only support for Word, CSV, and database comparisons
Our verdict on Altova DiffDog
Altova DiffDog is a Windows desktop application for developers and IT professionals who need to compare, merge, and synchronize files or folders. Its scope covers text and source-code files, XML and JSON documents, folders, directories, databases, CSV data, ZIP archives, XML schemas, and Microsoft Word documents. Two-way and three-way comparison, syntax coloring, line folding, line wrapping, and directory synchronization support both code-focused and structured-data workflows.
The two editions separate general file comparison from broader document and data coverage. Professional Edition includes text-file diff and merge, folder and directory comparison, and XML-aware comparison options. Enterprise Edition adds Microsoft Word comparison and merging, along with XML Schema, CSV, and database content and schema comparison. DiffDog is sold as a paid product, with a 30-day fully functional trial rather than a free plan. Published pricing is shown as “from” amounts in EUR, and the available starting price is 159.
DiffDog fits teams that need XML-aware editing, database schema or data comparison, archive handling, and three-way merges in one desktop tool. Git differencing-tool integration extends its usefulness in development workflows, while FTP and HTTP are listed among its integrations. Diff reports can be generated in text, XML, or HTML formats. The main boundary is platform coverage: it is available for Windows only. Choose it when structured comparisons and synchronization matter more than broad operating-system support; consider another tool if macOS or Linux access is required or if a free plan is essential.
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Altova DiffDog pricing
All 2 Altova DiffDog plans and prices →
Altova DiffDog fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Three-way merge | Yes |
| Folder comparison | Yes |
| Git integration | Yes |
| Syntax highlighting | Yes |
| Platform support | Desktop |
| Merge scope | Three_way |
| Free trial | 30 days |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Tickets, Docs, Community |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 3 integrations: Git, FTP, HTTP |
| Pricing | 30-day trial (source) |
| Website | altova.com |
| Facts checked | 20 Sep 2026 |
Altova DiffDog integrations
Altova DiffDog lists 3 integrations on its own site.
- Git
- FTP
- HTTP
Alternatives to Altova DiffDog
- Beyond CompareA broad desktop diff suite with three-way merging, synchronization, and version-control integrations.9.4
- DiffractA capable free-first diff tool with cross-platform support and Pro merging features.9.3
- P4MergeA free desktop diff and merge tool with three-way merging and broad platform support.9.1
See all Altova DiffDog alternatives →
Also Ranked In
Altova DiffDog is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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