Best Altova DiffDog Alternatives in 2026
Updated
20 tools from file comparison software ranked against Altova DiffDog on the same published basis.
- 1Altova DiffDog vs Diffchecker
- 2Altova DiffDog vs Diffract
- 3Altova DiffDog vs Beyond Compare
- 4Altova DiffDog vs Buddi
- 5Altova DiffDog vs Code Compare
- 6Altova DiffDog vs Beyond Compare
- 7Altova DiffDog vs Meld
- 8Altova DiffDog vs SmartSynchronize
- 9Altova DiffDog vs cwdiff
- 10Altova DiffDog vs WinMerge
- 11Altova DiffDog vs AmSo Compare
- 12Altova DiffDog vs FolderMatch
- 13Altova DiffDog vs Kaleidoscope
- 14Altova DiffDog vs NextDiff
- 15Altova DiffDog vs TkDiff
- 16Altova DiffDog vs Diff-Text
- 17Altova DiffDog vs P4Merge
- 18Altova DiffDog vs DeltaWalker
- 19Altova DiffDog vs Guiffy
- 20Altova DiffDog vs KDiff3
Altova DiffDog alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Diffchecker | 7.8 | Free plan | $15/mo | Linux, Mac, Web, Windows |
| 2 | Diffract | 7.6 | Free plan | Free | Linux, Mac, Windows |
| 3 | Beyond Compare | 7.2 | No | — | Linux, Mac, Windows |
| 4 | Buddi | 7.2 | Free plan | Free | Linux, Mac, Windows |
| 5 | Code Compare | 7.2 | Free plan | Free | Browser, Windows |
| 6 | Beyond Compare | 7.1 | No | — | Linux, Mac, Windows |
| 7 | Meld | 7.1 | Free plan | Free | Linux, Windows |
| 8 | SmartSynchronize | 6.9 | No | — | Linux, Mac, Windows |
| 9 | cwdiff | 6.8 | Free plan | Free | Linux |
| 10 | WinMerge | 6.8 | Free plan | Free | Windows |
| 11 | AmSo Compare | 6.7 | No | $1.08/mo | Mac |
| 12 | FolderMatch | 6.7 | No | — | Windows |
| 13 | Kaleidoscope | 6.7 | No | $0.67/mo | Mac |
| 14 | NextDiff | 6.7 | Free plan | Free | Windows |
| 15 | TkDiff | 6.2 | No | — | Linux, Mac, Windows |
| 16 | Diff-Text | 6.1 | No | — | Web, Windows |
| 17 | P4Merge | 6.1 | No | — | Linux, Mac, Windows |
| 18 | DeltaWalker | 5.8 | No | — | Windows, Mac, Linux |
| 19 | Guiffy | 5.8 | No | — | Windows, Mac, Linux |
| 20 | KDiff3 | 5.8 | No | — | Windows, Mac, Linux |
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Questions about Altova DiffDog alternatives
What is the best alternative to Altova DiffDog?
Diffchecker, number 1 in file comparison software with a score of 7.8 out of 10. The others here: Diffract, Beyond Compare, Buddi and 16 more.
What is the best free alternative to Altova DiffDog?
Diffchecker is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.