zsCompare lets you manually or automatically compare and synchronize files, folders, and zip files between local directories or networked computers. You can also compare the contents of text files line by line, and then merge the files to include only the changes you want. Freeform text comparison lets you compare text from any source including Word and PDFs. Finally, zsCompare includes a powerful duplicate file finder.
Version 2.4 adds the fuunctionality from zsDuplicateHunter version 2.0, improves text comparison accuracy, and improves the display of text comparison results.