deborphan is described as 'finds packages installed on your Debian/GNU system that have no other packages depending on them. Its primary goal (and default action) is to trace unused libraries. A dialog frontend, orphaner, is included in the package for easy removal of packages' and is an app in the OS & Utilities category. There are five alternatives to deborphan for Linux, Debian and Xfce. The best alternative is Synaptic, which is both free and Open Source. Other great apps like deborphan are aptitude (Free, Open Source), localepurge (Free, Open Source), debfoster (Free, Open Source) and GtkOrphan (Free, Open Source).
Synaptic is a graphical package management program for apt. It provides the same features as the apt-get command line utility with a GUI front-end based on Gtk+. * Install, remove, upgrade and downgrade single and multiple packages. * Upgrade your whole system.
Debian uses the main programs apt and dpkg to manage packages. These programs do not make a distinction between packages that got installed because some other program happened to need it and packages you really asked for.
GtkOrphan (a Perl/Gtk2 application for debian systems) is a graphical tool which analyzes the status of your installations, looking for orphaned libraries. It implements a GUI front-end for deborphan, adding the package-removal capability.