93 Like GnuPG Good alternative? YES NO 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 Linux PortableApps.com Xfce Encrypted email Add a feature
51 Like Enigmail Good alternative? YES NO Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. Free Open Source Mac Windows Linux Thunderbird SeaMonkey No features added Add a feature
14 Like OpenKeychain Good alternative? YES NO 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
10 Like GPGMail Good alternative? YES NO GPGMail is an open source plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard. Free Open Source Mac No features added Add a feature
5 Like GPG Suite Good alternative? YES NO GPG for Mail is an open source plugin for Apple Mail. Encrypt, decrypt, sign and verify mails using OpenPGP with a few simple clicks. GPG Keychain is an open source... Free Open Source Mac No features added Add a feature
1 Like WebPG Good alternative? YES NO WebPG is a free, open source suite of tools to bring GnuPG/PGP (gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the... Free Open Source Mac Windows Linux Chrome Thunderbird SeaMonkey Chromium Firefox Google Chrome extension Firefox extension Add a feature
1 Like iGPMail Good alternative? YES NO 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
0 Like Ciphermail for Android Alternative? YES NO 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 No features added Add a feature
0 Like OneTime Good alternative? YES NO 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 Windows Linux Command line interface Add a feature
0 Like oPenGP Good alternative? YES NO oPenGP is a solution to support OpenPGP standard (RFC 4880) on your iOS device. Commercial iPhone iPad No features added Add a feature
