Diffinity is described as 'Diff and merging tool with focus on accurate and easy to read source code diffs. It will compare the content of two files and present the differences in an easy to read line by line and char by char basis' and is a Diff Tool in the development category. There are more than 25 alternatives to Diffinity for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best Diffinity alternative is WinMerge, which is both free and Open Source. Other great apps like Diffinity are Meld, Beyond Compare, KDiff3 and ForskScope.