PopChar is a commercial character map tool for Windows (PopChar Win) and Mac OS (PopChar X).
Main features:
Inserts special characters right into your document.
Full Unicode support with different comfortable views and pop-up menu for quick navigation.
Search for characters by name, by Unicode number or by simply pasting some text from your document into the search field.
Find characters by drawing their shapes.
Find similar characters.
Font preview and sample text views
Font information
View and print font sheets
Individually adjust the sizes of certain fonts.
Custom favorites section provides quick access to frequently used characters.
Magnifier tool provides an enlarged view to see selected characters in full detail.
Work across font boundaries and see all available characters system-wide.
“Reverse search” for fonts that contain a particular character.
Recent characters view for instant access to your frequently used characters.