XQuartz Software

GNOME Files, formerly known as Nautilus, is the official file manager for the GNOME desktop, giving the user a simple way to navigate and manage its files.

HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.

Thunar is a modern file manager for the Xfce Desktop Environment. Thunar has been designed from the ground up to be fast and easy-to-use. Its user interface is clean, intuitive, and customizable. Thunar is fast and responsive with a good start up time and directory load time.

Krusader is an advanced twin panel (commander style) file manager for KDE Plasma and other desktops in the *nix world.

Open source character map for the GNOME desktop environment.