Online Text compare is a browser based data compare tool that highlights the differences between two versions.
AptDiff Alternatives
AptDiff is described as 'Visual text / binary files comparison and merging utility for Windows. It is highly useful for web designers, software developers, and other professionals' and is a Diff Tool in the development category. There are more than 50 alternatives to AptDiff for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best AptDiff alternative is WinMerge, which is both free and Open Source. Other great apps like AptDiff are Meld, Beyond Compare, KDiff3 and P4Merge.