gucharmap allows you to browse through all the available Unicode characters and categories for the installed fonts, and to examine their detailed properties.
gucharmap also accepts the standard GNOME and GTK options.
gucharmap was written by Noah Levitt <firstname.lastname@example.org> and others.
This manual page was written by Sven Arvidsson <email@example.com>, for the Debian project (but may be used by others).
The online documentation available through the program's Help menu.