Email Encryption

<!doctype html>  <html lang="en" class="no-js"> <head> <meta charset="utf-8"> <title>Email Encryption - OpenPGP</title> <meta name="description" content="Email Encryption"> <meta name="author" content="OpenPGP"> <meta property="article:author" content="OpenPGP"> <meta property="og:type" content="article"> <meta property="og:locale" content="en"> <meta property="og:site_name" content="OpenPGP"> <meta property="og:title" content="Email Encryption"> <meta property="og:url" content="https://www.openpgp.org/software/"> <meta property="og:description" content="Email Encryption"> <meta property="article:published_time" content="2025-02-04T09:47:50+00:00"> <meta property="article:modified_time" content="2025-02-04T09:46:38+00:00"> <link rel="canonical" href="https://www.openpgp.org/software/">  <link href="/feed.xml" type="application/atom+xml" rel="alternate" title="OpenPGP Feed"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script type="text/javascript"> document.documentElement.className = document.documentElement.className.replace(/\bno-js\b/g, '') + ' js '; </script>  <link rel="stylesheet" href="/assets/css/main.css"> <link href="/assets/css/fontawesome.min.css" rel="stylesheet" /> <link href="/assets/css/brands.min.css" rel="stylesheet" /> <link href="/assets/css/solid.min.css" rel="stylesheet" />   <link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16.png"> <link rel="manifest" href="/site.webmanifest"> <link rel="mask-icon" href="/images/safari-pinned-tab.svg" color="#5bbad5"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="theme-color" content="#ffffff">  </head> <body class="layout--single"> <nav class="skip-links"> <ul> <li><a href="#site-nav" class="screen-reader-shortcut">Skip to primary navigation</a></li> <li><a href="#main" class="screen-reader-shortcut">Skip to content</a></li> <li><a href="#footer" class="screen-reader-shortcut">Skip to footer</a></li> </ul> </nav> <div class="masthead"> <div class="masthead__inner-wrap"> <div class="masthead__menu"> <nav id="site-nav" class="greedy-nav"> <a class="site-title" href="/"> OpenPGP </a> <ul class="visible-links"><li class="masthead__menu-item"> <a href="/about/" >About OpenPGP</a> </li><li class="masthead__menu-item"> <a href="/software/" >Software</a> </li><li class="masthead__menu-item"> <a href="/community/" >Community/Consulting</a> </li></ul> <button class="greedy-nav__toggle hidden" type="button"> <span class="visually-hidden">Toggle menu</span> <div class="navicon"></div> </button> <ul class="hidden-links hidden"></ul> </nav> </div> </div> </div> <div class="initial-content"> <div id="main" role="main"> <div class="sidebar sticky"> <nav class="nav__list"> <input id="ac-toc" name="accordion-toc" type="checkbox" /> <label for="ac-toc">Toggle Menu</label> <ul class="nav__items"> <li> <span class="nav__sub-title">Software</span> <ul> <li><a href="/software/" class="active">Email Encryption</a></li> <li><a href="/software/server/">Server Software</a></li> <li><a href="/software/developer/">Developer Libraries/Tools</a></li> <li><a href="/software/misc/">Misc Tools</a></li> </ul> </li> </ul> </nav> </div> <article class="page" itemscope itemtype="https://schema.org/CreativeWork"> <meta itemprop="headline" content="Email Encryption"> <meta itemprop="description" content="Email Encryption"> <meta itemprop="dateModified" content="2025-02-04T09:46:38+00:00"> <div class="page__inner-wrap"> <header> <h1 id="page-title" class="page__title" itemprop="headline"> <a href="https://www.openpgp.org/software/" itemprop="url">Email Encryption </a> </h1> </header> <section class="page__content" itemprop="text"> <aside class="sidebar__right"> <nav class="toc"> <header><h4 class="nav__title"><i class="fas fa-file-alt"></i> On This Page</h4></header> <ul class="toc__menu" id="markdown-toc"> <li><a href="#windows" id="markdown-toc-windows">Windows</a></li> <li><a href="#mac-os" id="markdown-toc-mac-os">Mac OS</a></li> <li><a href="#android" id="markdown-toc-android">Android</a></li> <li><a href="#ios" id="markdown-toc-ios">iOS</a></li> <li><a href="#linux" id="markdown-toc-linux">Linux</a></li> <li><a href="#browser-plugins" id="markdown-toc-browser-plugins">Browser Plugins</a></li> <li><a href="#webmail-provider-with-browser-plugins" id="markdown-toc-webmail-provider-with-browser-plugins">Webmail Provider with Browser Plugins</a></li> <li><a href="#webmail-provider-with-in-browser-cryptography" id="markdown-toc-webmail-provider-with-in-browser-cryptography">Webmail Provider with In-Browser Cryptography</a></li> <li><a href="#project-missing" id="markdown-toc-project-missing">Project Missing?</a></li> </ul> </nav> </aside> <p>All email applications on this page support the OpenPGP standard either directly or with additional software. The authors of this webpage are not actively participating in the development of each of these third-party apps. No security audits have been done by us and, thus, we cannot provide any security guarantees.</p> <h2 id="windows">Windows</h2> <ul> <li><a href="/software/claws/">Claws Mail</a></li> <li><a href="/software/deltachat">Delta Chat</a></li> <li><a href="/software/emclient/">eM Client</a></li> <li><a href="/software/everdesk/">EverDesk</a></li> <li>Outlook: <ul> <li><a href="/software/gpg4o/">gpg4o</a></li> <li><a href="/software/gpg4win/">Gpg4win</a></li> <li><a href="/software/planck/">Planck</a></li> </ul> </li> <li><a href="/software/postbox/">Postbox</a> using <a href="/software/enigmail/">Enigmail</a></li> <li><a href="/software/securemyemail/">SecureMyEmail</a></li> <li><a href="/software/thebat/">The Bat!</a></li> <li><a href="/software/thunderbird">Thunderbird</a>: <ul> <li><a href="/software/autocrypt/">Autocrypt</a> for versions <78</li> <li><a href="/software/enigmail/">Enigmail</a> for versions <78</li> </ul> </li> </ul> <h2 id="mac-os">Mac OS</h2> <ul> <li><a href="/software/gpgtools/">Apple Mail: GPGTools</a></li> <li><a href="/software/canary-mail/">Canary Mail</a></li> <li><a href="/software/deltachat">Delta Chat</a></li> <li><a href="/software/mutt/">Mutt</a></li> <li><a href="/software/postbox/">Postbox</a> using <a href="/software/enigmail/">Enigmail</a></li> <li><a href="/software/securemyemail/">SecureMyEmail</a></li> <li><a href="/software/thunderbird">Thunderbird</a>: <ul> <li><a href="/software/autocrypt/">Autocrypt</a> for versions <78</li> <li><a href="/software/enigmail/">Enigmail</a> for versions <78</li> </ul> </li> </ul> <h2 id="android">Android</h2> <ul> <li><a href="/software/fairemail/">FairEmail</a></li> <li><a href="/software/deltachat">Delta Chat</a></li> <li><a href="/software/flowcrypt/">FlowCrypt</a></li> <li><a href="/software/openkeychain/">K-9 Mail: OpenKeychain</a></li> <li><a href="/software/planck/">Planck</a></li> <li><a href="/software/r2mail2/">R2Mail2</a></li> <li><a href="/software/securemyemail/">SecureMyEmail</a></li> </ul> <h2 id="ios">iOS</h2> <ul> <li><a href="/software/canary-mail/">Canary Mail</a></li> <li><a href="/software/deltachat">Delta Chat</a></li> <li><a href="/software/flowcrypt/">FlowCrypt</a></li> <li><a href="/software/ipgmail/">iPGMail</a></li> <li><a href="https://www.pgpeverywhere.com/">PGP Everywhere</a></li> <li><a href="/software/planck/">Planck</a></li> <li><a href="/software/securemyemail/">SecureMyEmail</a></li> </ul> <h2 id="linux">Linux</h2> <ul> <li><a href="/software/claws/">Claws Mail</a></li> <li><a href="/software/deltachat">Delta Chat</a></li> <li><a href="/software/seahorse/">Evolution: Seahorse</a></li> <li><a href="/software/kleopatra/">KMail: Kleopatra</a></li> <li><a href="/software/mutt/">Mutt</a></li> <li><a href="/software/thunderbird">Thunderbird</a>: <ul> <li><a href="/software/autocrypt/">Autocrypt</a> for versions <78</li> <li><a href="/software/enigmail/">Enigmail</a> for versions <78</li> </ul> </li> </ul> <h2 id="browser-plugins">Browser Plugins</h2> <ul> <li><a href="/software/flowcrypt/">FlowCrypt (Gmail)</a></li> <li><a href="/software/mailvelope/">Mailvelope</a></li> <li><a href="/software/psono/">Psono</a></li> </ul> <h2 id="webmail-provider-with-browser-plugins">Webmail Provider with Browser Plugins</h2> <p>A lot of webmail providers support email encryption via the OpenPGP standard using <a href="/software/mailvelope/">Mailvelope</a>. The Mailvelope website provides a list of <a href="https://www.mailvelope.com/en/faq#mailer_list">supported webmail providers</a>.</p> <p>Providers with help pages:</p> <ul> <li><a href="https://hilfe.gmx.net/sicherheit/pgp/mailvelope-installieren.html">GMX</a></li> <li><a href="https://posteo.de/hilfe/wie-installiere-ich-eine-ende-zu-ende-verschluesselung-pgp-im-browser">Posteo</a></li> <li><a href="https://hilfe.web.de/sicherheit/pgp/index.html">WEB.DE</a></li> </ul> <p>Pre-configured (authorized) providers:</p> <ul> <li><a href="https://mail.google.com/">Gmail</a></li> <li><a href="https://mail.ru/">mail.ru</a></li> <li><a href="https://outlook.live.com/owa/">Outlook.com</a></li> <li><a href="https://volny.cz/">volny.cz</a></li> <li><a href="https://login.yahoo.com/">Yahoo</a></li> <li><a href="https://www.zoho.eu/mail/">Zoho Mail</a></li> </ul> <p>Other authorized providers with API support:</p> <ul> <li><a href="https://mailbox.org/">mailbox.org</a></li> <li><a href="https://mail.riseup.net/">riseup.net</a></li> <li><a href="https://roundcube.net/">Roundcube</a></li> </ul> <h2 id="webmail-provider-with-in-browser-cryptography">Webmail Provider with In-Browser Cryptography</h2> <p>In contrast to the previous section, the following webmail providers do not require the installation of additional browser plugins, instead OpenPGP is implemented in JavaScript provided directly by the website. While these are easier to set up and provide basic security guarantees with OpenPGP, <a href="https://tonyarcieri.com/whats-wrong-with-webcrypto">some people don’t consider these “end-to-end secure”</a>.</p> <ul> <li><a href="https://www.hushmail.com/">Hushmail</a> (limited OpenPGP support)</li> <li><a href="https://www.mailfence.com/">Mailfence</a></li> <li><a href="https://postale.io/">postale.io</a></li> <li><a href="https://protonmail.com/">ProtonMail</a></li> <li><a href="https://mailbox.org/">mailbox.org</a></li> </ul> <h2 id="project-missing">Project Missing?</h2> <p>If a project is missing and you would like it included, please open a pull request at <a href="https://github.com/OpenPGP/openpgp.org">github.com/OpenPGP/openpgp.org</a>. Please note that we only include published, working software, which implements the standard. The software is ordered alphabetically within the sections.</p> </section> <footer class="page__meta"> <p class="page__date"><strong><i class="fas fa-fw fa-calendar-alt" aria-hidden="true"></i> Updated:</strong> <time class="dt-published" datetime="2025-02-04">February 4, 2025</time></p> </footer> <nav class="pagination"> <a href="/software/securemyemail" class="pagination--pager" title="SecureMyEmail ">Previous</a> <a href="/software/server/" class="pagination--pager" title="Server ">Next</a> </nav> </div> </article> </div> </div> <div id="footer" class="page__footer"> <footer>   <div class="page__footer-follow"> <ul class="social-icons"> <li><a href="https://github.com/OpenPGP/openpgp.org/" rel="nofollow noopener noreferrer"><i class="fab fa-fw fa-github" aria-hidden="true"></i> This site is organized in the open on GitHub. 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Email Encryption - OpenPGP