Diffinity vs DiffMerge
Diffinity
truehumandesign.seDiffMerge
diffmerge.netSide by side
| Figure | Diffinity | DiffMerge |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Diff and Merge Tools | 7.6 (#16) | 8.1 (#12) |
| Spec score · File Comparison Software | 7.5 (#24) | 8.0 (#15) |
| Folder comparison | Diffinity can compare folders as well as files. | It compares and merges directory trees and can synchronize folder hierarchies. |
| Purpose | Diffinity compares and merges text files, showing differences line by line and highlighting differing characters or words. | DiffMerge compares and synchronizes folders and compares and merges files. |
Plans
In their own words
Diffinity
Diffinity is a free Windows utility for comparing and merging text files and folders. It shows line-level differences, highlights changed characters or words, and marks added, removed, and changed lines. A thumbnail view summarizes differences, while search can highlight every instance of a selected word. The maker emphasizes readable source-code comparisons, including improved diffing for C-style code and XML. Editing tools include syntax highlighting, customizable tabs, manual alignment markers, and inline differences that update while typing. Diffinity supports Unicode, detects encoding automatically, and warns when compared files use different encodings. It integrates with Windows Explorer, can run from an external device, and accepts file or folder paths with command-line options, including a folder-diff view. Documentation covers configuration with Git and Perforce Helix P4V. The license allows free personal and commercial use and redistribution of unmodified copies, while prohibiting modification and reverse engineering. Listed release 0.9.6, dated 2026-09-16, requires .NET 8.0.