Kompare

Meld is a visual diff and merge tool. You can compare two or three files and edit them in place (diffs update dynamically). You can compare two or three folders …

KDiff3 is a file and directory diff and merge tool which compares and merges two or three text input files or directories, shows the differences line by line and character …

DirSync Pro (Directory Synchronize Pro) is a small utility for file and folder synchronization without bidirectional file-deletion. DirSync Pro can be used to synchronize the content of one or many …

Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code. Diffuse is able to compare …

tkdiff is a graphical diff viewer based on the Tk framework. It is capable of inter-operating with source-control systems like CVS and Subversion to show differences between a local copy …

xxdiff is a QT based graphical file and directories comparator and merge tool. It provides comparing two files, three files.