SmartSynchronize is described as 'Multi-platform file and directory compare tool. It allows you to compare files or perform 3-way-merges, both with the ability to edit the file contents. SmartSynchronize is specialized in comparing directory structures (for example, of software projects)' and is a Diff Tool in the file management category. There are more than 50 alternatives to SmartSynchronize for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best SmartSynchronize alternative is WinMerge, which is both free and Open Source. Other great apps like SmartSynchronize are Meld, Beyond Compare, KDiff3 and ForskScope.