PopChar - The character map that works!
WordMark.it - If you are a font lover, here is the best platform for you named as Wordmark.
Typetester - Typetester is an online tool for designing with web fonts.
Font Viewer - Font Viewer is an application which does exactly that - it views fonts!
Opcion Font Viewer - Opcion Font Viewer is the name of a free and open source font viewer that will make you able to get the view of both installed and uninstalled fonts in your system.
AMP Font Viewer - Jump to Download - Download.