KDiff3 is a file and folder diff and merge tool which
* compares and merges two or three text input files or folders,
* shows the differences line by line and character by character(!),
* provides an automatic merge-facility,
* has an editor for comfortable solving of merge-conflicts,
* provides network transparency via KIO,
* option for highlight or hide changes in white-space or comments,
* supports Unicode, UTF-8 and other file encodings,
* prints differences,
* supports version control keyword and history merging.
KDiff3 is a KDE Application
KDiff3 requires KDE Frameworks packages provided by Slackware
NOTE: The historical Qt4-only build has not been ported to Qt5.