= OpenPGP.js

http://openpgpjs.org/ 

License: GNU LGPL v>=2.1.

used by:
* https://www.mailvelope.com/ (License GNU Affero v==3) for Webmail -- extensions for Chrome/Chromium & Firefox
* [[https://chrome.google.com/webstore/detail/mymail-crypt-for-gmail/jcaobjhdnlpmopmjhijplpjhlplfkhba|Mymail-Crypt for Gmail]] ([[https://github.com/seancolyer/gmail-crypt/blob/master/LICENSE|License]]: GNU GPL v>=2) -- extension for Chrome/Chromium

Completeness: ?

Compatibility: ?


= Chromium Extension End-to-End

https://code.google.com/p/end-to-end/

| License | Apache 2.0 |
| Programming Language/Environment | Javascript, Chromium Extension |

Completeness: ? Claims to only create ECC certificates (which curve parameters?)

Compatibility: ?


* Google announced a Chromium extension that supports ~OpenPGP, see http://googleonlinesecurity.blogspot.de/2014/06/making-end-to-end-encryption-easier-to.html
* Heise newsarticle in DE: http://www.heise.de/newsticker/meldung/Google-experimentiert-mit-End-to-End-Verschluesselung-fuer-GMail-2215680.html

= Android Privacy Guard 
http://thialfihar.org/projects/apg/

| License | GPL 3+ |
| Programming Language/Environment | Java, Android SDK |

Completeness: ?

Compatibility: ?

Integrates with the K-9 Mailer.

= OpenPGP-Keychain

http://www.openkeychain.org/about/ , Fork of APG

| License | GPL 3+ |
| Programming Language/Environment | Java, Android SDK |

Completeness: ?

Compatibility: ?

= Discussion
 * https://news.ycombinator.com/item?id=7843297 Discussion about ~OpenPGP.js codequality and choice of reimplementation in End-to-End.