tkdiff is a graphical front end to the diff program. It provides a side-by-side view
of the differences between two files, along with several innovative features such as diff bookmarks and a graphical map of differences for quick navigation.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.