FontView
a demo app that displays fonts
Screenshots
Hunter's comment
Do you feel pressure when identifying a specific font used in a specific designs or texts?
Well, you don't have to get worried anymore because FontView offers such an awesome feature for you to really grab it!
FontView is an open source application which is created for displaying or showing the contents of a font file.
It basically supports *.ttf, *.otf, *.ttc, *.otc, *.pfa, and *.pfb files. Currently, this application is an open source project and is open for any changes since this available for MacOS at the moment.
Link
https://github.com/googlei18n/fontview
Contributors
Hunter: 
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