File System Visualizer

File System Visualizer, also known as fsv, is a 3D file browser using OpenGL, written by Daniel Richard G. It is a clone of SGI's fsn file manager for IRIX systems, aimed to run on modern Linux and other Unix-like operating systems.
It is capable of representing file systems in two ways:
In both of these modes, a standard 2D file tree is displayed on the left of the window. The mouse can be used to rotate the 3D representation of the file system, and an "Eagle Eye" function shows the representation from an overhead view. File System Visualizer is also capable of manipulating the files and directories it displays.