Side by side
Altova DiffDog vs Compare and Merge
Both stand on file comparison software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial Windows
DiffDog covers file and directory comparisons as well as database work, with Enterprise Edition adding three-way merges and expanded database comparisons. Check the Word requirement and the edition-specific features before choosing between the two one-time plans.
Visit Altova DiffDog
Free trial Windows
Compare and Merge combines visual comparison, editing, merging, and command-line workflows in a Windows application. The one-time license and 50-comparison evaluation limit are central purchasing details.
Visit Compare and MergeThe facts
| Altova DiffDog | Compare and Merge | |
|---|---|---|
| Free plan | A free trial | A free trial |
| Open source | Not published | Not published |
| Runs on | Windows | Windows |
| Lowest paid plan | DiffDog 2026 Professional Edition: $189, paid once | Standard License (per computer): $39.95, paid once |
| Plans published | 2 | 1 |
| Maker | Not published | Not published |
| Website | altova.com | compareandmerge.com |
| On file comparison software | #17 of 33 | #21 of 33 |
Altova DiffDog: what it does well
- Compares files, folders, and database data
- Supports bidirectional merging and direct file editing
- Enterprise Edition adds three-way comparison
- Exports difference reports in three formats
- Offers a 30-day trial
What to know first
- Available on Windows
- Word comparison requires Microsoft Word 2003 or later
- No free plan
Compare and Merge: what it does well
- Compares files and entire folders
- Character-level difference highlighting
- Click or drag-and-drop merging
- Command-line automation for CI
- Exports results to HTML
What to know first
- No macOS or Linux support
- No free plan
- Evaluation limited to 50 comparisons
- Administrator rights required for installation
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