Altova DiffDog vs WinMerge
Altova DiffDog
altova.com
WinMerge
winmerge.orgSide by side
| Figure | Altova DiffDog | WinMerge |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Diff and Merge Tools | 8.3 (#4) | 7.0 (#26) |
| Purpose | DiffDog compares and merges text and source-code files, XML and JSON files, Word documents, directories, and database schemas and content. | WinMerge compares files and folders and presents differences visually for merging. |
Plans
Altova DiffDog
- DiffDog 2026 Professional Edition$189, paid once
- DiffDog 2026 Enterprise Edition$269, paid once
In their own words
Altova DiffDog
Altova DiffDog has no write-up on Specifiction yet; its figures are above.