MacGPG1

iJournal   (Compare Project)

Mostly written in Objective-C

License: BSD-3-Clause

GnuPG   (Compare Project)

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License: gpl

PyGPGME   (Compare Project)

License: lgpl21_or_later

Kleopatra   (Compare Project)

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License: GPL2

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Ruby-GPGME   (Compare Project)

Mostly written in Ruby

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OpenPGP.rb   (Compare Project)

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License: mit

Nitrokey   (Compare Project)

License: Unknown

OpenPGP Public Key Server   (Compare Project)

Mostly written in C

License: Unknown

pass.js   (Compare Project)

Mostly written in JavaScript

License: Unknown