Xubuntu

A light-weight Linux distribution intended for both new and experienced Linux users. Xubuntu comes with the Xfce desktop environment by default which use fewer system resources than the default Ubuntu GNOME desktop. Xubuntu was officially released on 1 June 2006 and has seen active development since. It is openly maintained by the community and released free of charge under the GNU General Public License.

Lubuntu is a free and open-source Linux distribution released under the GNU General Public License.