Fonty
Fonty allows you to scan all the installed fonts on your Mac and lists their character support. Fonty comes with some predefined character sets for some common languages and groups of characters. Fonty was designed to help graphic designers choose appropriate fonts for multilingual artworks which have the right characters for all required languages. However, the character sets don't necessarily have to be language specific. You can create your own character sets (look in Preferences) with whatever set of characters you like e.g. currency, scientific symbols or braille etc.
