Text Comparator is described as ', is a portable tool that can be used to compare text from two distinct sources in order to see if they perfectly match or not each other!' and is a Diff Tool in the Development category. There are more than 25 alternatives to Text Comparator for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and BSD. The best alternative is WinMerge, which is both free and Open Source. Other great apps like Text Comparator are Beyond Compare (Paid), KDiff3 (Free, Open Source), Compare (Free, Open Source) and FileMerge (Free).
Beyond Compare allows you to compare files and folders. By using simple, powerful commands you can focus on the differences you're interested in and ignore those you're not. You can then merge the changes, synchronize your files, and generate reports for your records.
Merge is the visual file comparison (diff), merging and folder synchronization application from Araxis. Use it to compare and merge source code, web pages, XML and other text files with native application performance.