ExamDiff Pro (32 bit)

Whether you want to compare Word documents or PERL code, ExamDiff Pro loads any two files of your choice and shows you how they differ from each other.

Similar to its free cousin, but offering up many more options and customization, ExamDiff Pro displays the two files side by side, highlighting differences and allowing you to make changes on the fly. The app's handy interface offers several navigation schemes--buttons that take you to the previous or next change, a drop-down list of differences by line, or mouse functionality going directly to any line in either document.

What's more, if you open a subfolder or file in one directory, the program automatically compares it with the same item in the second. Files can be scrolled in tandem or separately, and there are numerous options for comparing items: looking at differences by line, word, or character; ignoring spaces; or only viewing similarities. Colors can be customized, and changes can be saved to one or both opened files. Output can be in Unix DIFF or HTML.

ExamDiff Pro should appeal to all levels of developers, from those just learning HTML to seasoned pros.