GPG4Win

gpg4win is an installer package for windows (2000/xp/2003/vista) with computer programs and handbooks for email and file encryption. both relevant cryptography standards are supported, https://alternativein .

Free Open Source Windows S/MIME GnuPG

GPGTools

Use GPG Suite to encrypt, decrypt, sign and verify files or messages. Manage your GPG Keychain with a few simple clicks and experience the full power of GPG easier than ever before.

Free Open Source Mac OS X GPG Suite

gpg4usb

gpg4usb is an easy to use, small portable editor with the possibility to encrypt and decrypt any text-message or -file you want. for encryption it acts as a gnupg -frontend.

Free Open Source Windows Linux GnuPG

WinGPG

WinGPG is a tray-based classical Windows application, Windows NT Explorer shell extension, and a classic GPGv2 distribution. It offers you an opportunity to manage keys...

Free Open Source Windows OpenPGP

Paubox

Paubox provides HIPAA compliant email encryption without the hassle of extra steps. Just send emails like normal from any device.

Commercial Mac OS X Windows Android iPhone Web Blackberry Windows RT Windows Mobile

p=p pretty Easy privacy

It offers an automatic and easy to use solution with end-to-end protection for all written digital communications over the Internet. It have been designed to provide...

Commercial Windows Android

Symantec Desktop Email Encryption

Desktop Email Encryption provides an end-to-end email encryption solution that automatically encrypts and decrypts email directly from one user's client to...

Commercial Windows

GNUPGK

A GnuPG Frontend GUI made in C#. It is compatible with PGP as well so it can be a very useful tool for encryption/decryption. It also incorporates a shell extension so...

Free Open Source Windows OpenPGP