Guiffy SureMerge is described as 'Guiffy is a diff merge tool and folder compare application and API. SureMerge is the most trustworthy source code 3-way merge tool available. Advanced features include tuneable inline diff highlighting, syntax highlighting and a blend of 3 diff algorithms' and is a Diff Tool in the file management category. There are more than 50 alternatives to Guiffy SureMerge for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best Guiffy SureMerge alternative is WinMerge, which is both free and Open Source. Other great apps like Guiffy SureMerge are Meld, Beyond Compare, KDiff3 and P4Merge.