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WhatsYourSign adds a menu item to Finder to display cryptographic signing information of a file. Verifying a file's cryptographic signature can help deduce its origin or trustability, help to determine whether a file should be trusted. There is no simple way to view a file's signature from the UI, unfortunately, and that is why WhatsYourSign was created.

What's New

Version 1.4.1:
  • Now checks all architectures (in fat files)
  • UI improvements


  • OS X 10.10 or later

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WhatsYourSign User Discussion

4.7 3


Current Version (1.x)


Downloads 797
Version Downloads 121
License Free
Date 22 Feb 2018
Platform Intel 64 / OS X
Price Free
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