KWatchGnuPG is simple GnuPG log viewer for the upcoming GnuPG versions 1.4 and 2.0. It works as a GUI wrapper around the command line tool WatchGnuPG, which listens on a socket for log lines from the GnuPG backend applications. See info watchgnupg for more information about WatchGnuPG.

KWatchGnuPG can be started from the Tools → GnuPG Log Viewer menu of both Kleopatra and KMail, as well as from the command line. The KWatchGnuPG executable is named kwatchgnupg.