GnuPG GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key... Free Open Source Mac OS X Linux PortableApps.com Xfce OpenPGP Encrypted email Add a feature 101 Like
Enigmail Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. Free Open Source Mac Windows Linux GnuPG Thunderbird ... SeaMonkey Privacy protection Add a feature 57 Like
OpenKeychain OpenKeychain helps you communicate more privately and securely. It uses high-quality modern encryption to ensure that your messages can be read only by the people you... Free Open Source Android Android Tablet K-9 Mail No features added Add a feature 15 Like
GPG Suite GPG for Mail is an open source plugin for Apple Mail. Encrypt, decrypt, sign and verify mails using OpenPGP with a few simple... Free Open Source Mac OS X GnuPG No features added Add a feature 8 Like
Kleopatra Kleopatra is a certificate manager and GUI for GnuPG. The software stores your OpenPGP certificates and keys. Free Open Source Windows Linux GnuPG Gpg encryption Add a feature 6 Like
GPGMail GPGMail is an open source plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the... Free Open Source Mac OS X GPGTools No features added Add a feature 10 Like
WebPG WebPG is a free, open source suite of tools to bring OpenPGP (GnuPG/PGP, gpg, gnupg) to the browser, in an effort to make... Free Open Source Mac OS X Windows Linux Chrome Thunderbird ... SeaMonkey Chromium Firefox OpenPGP Google Chrome extension Firefox extension Add a feature 1 Like
iGPMail iPGMail is an app that implements the OpenPGP standard (RFC 4880, RFC 6637) and allows the user to create and manage both public and private (RSA, DSA, ECDSA) PGP keys... Commercial $ $ $ iPhone iPad No features added Add a feature 1 Like
Autocrypt Autocrypt is a set of guidelines for developers to achieve convenient end-to-end-encryption of e-mails. It specifies how e-mail programs negotiate encryption... Free Open Source Self-Hosted OpenPGP PGP Encryption Add a feature 0 Like
Ciphermail for Android CipherMail for Android is an Android application which can be used with your existing Android mail application to send and receive S/MIME digitally signed and encrypted... Free Android S/MIME No features added Add a feature 0 Like
OneTime OneTime is an open source encryption program that uses the one-time pad algorithm to allow two parties to communicate privately. It has features to assist with the... Free Open Source Mac OS X Windows Linux Command line interface Add a feature 0 Like
oPenGP oPenGP is a solution to support OpenPGP standard (RFC 4880) on your iOS device. Commercial $ $ $ iPhone iPad Privacy protection Add a feature 0 Like
