Editing GNU Privacy Guard (section)

== Platforms ==
[[File:Zypper new repository package signing key screenshot.png|thumb|Example of usage of GnuPG: As [[software repository]] signing key for [[openSUSE]] (with [[ZYpp]])]]
Although the basic GnuPG program has a [[command-line interface]], there exists various [[Front and back ends|front-ends]] that provide it with a [[graphical user interface]]. For example, GnuPG encryption support has been integrated into [[Kontact#E-Mail|KMail]] and [[GNOME Evolution|Evolution]], the graphical [[email client]]s found in [[KDE]] and [[GNOME]], the most popular [[Linux]] desktops. There are also graphical GnuPG front-ends, for example [[Seahorse (software)|Seahorse]] for GNOME and [[KGPG]] and [[Kleopatra (software)|Kleopatra]] for KDE.

GPGTools provides a number of front-ends for OS integration of encryption and [[key management]] as well as GnuPG installations via [[Installer (macOS)|Installer]] [[Package manager|packages]]<ref name=":0">{{cite web|title=GPG Suite|url=https://gpgtools.org/|publisher=GPGTools|access-date=2017-12-24}}</ref> for [[macOS]]. GPG Suite<ref name=":0" /> installs all related OpenPGP applications (GPG Keychain), plugins ([[GPG Mail]]) and dependencies (MacGPG), along with GPG Services (integration into macOS Services menu) to use GnuPG based encryption.

[[Instant messaging]] applications such as [[Psi (instant messaging client)|Psi]] and Fire can automatically secure messages when GnuPG is installed and configured. Web-based software such as [[Horde (software)|Horde]] also makes use of it. The cross-platform [[Add-on (Mozilla)|extension]] [[Enigmail]] provides GnuPG support for [[Mozilla Thunderbird]] and [[SeaMonkey]]. Similarly, Enigform provides GnuPG support for [[Firefox|Mozilla Firefox]].  FireGPG was discontinued June 7, 2010.<ref>{{cite web|url=http://blog.getfiregpg.org/2010/06/07/firegpg-discontinued/|title=FireGPG's developers blog|date=7 June 2010 |access-date=July 24, 2013|archive-url=https://web.archive.org/web/20130727112311/http://blog.getfiregpg.org/2010/06/07/firegpg-discontinued/|archive-date=July 27, 2013|url-status=live}}</ref>

In 2005, g10 Code GmbH and Intevation GmbH released [[Gpg4win]], a software suite that includes GnuPG for Windows, GNU Privacy Assistant, and GnuPG plug-ins for [[File Explorer|Windows Explorer]] and [[Microsoft Outlook|Outlook]]. These tools are wrapped in a standard Windows installer, making it easier for GnuPG to be installed and used on Windows systems.<ref>{{Cite web|title=Gpg4win – About Gpg4win|url=https://www.gpg4win.org/about.html|access-date=2021-03-23|website=gpg4win.org}}</ref>