Philesight
Philesight is a tool to browse your filesystem and see where the diskspace is being used at a glance. Philesight is implemented as a simple command line program that generates PNG files; a wrapper CGI script is supplied to allow navigating through the filesystem. Click the image on top for an online demo. Philesight is actually a clone of the filelight program. Wheres filelight is ment as an interactive, user friendly application for the X-windows desktop, philesight is designed to run on a remote server without graphical user interface.
(Taken directly from the website). Alternatively, it's also available on github at https://github.com/scampion/philesight .
