OpenPGP Software

Browse 29 OpenPGP Software on AlternativeTo.

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  1. Evolution icon
     206 likes

    Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

    Cost / License

    Application types

    Platforms

    • Linux
    • BSD
    • Flathub
    • S/MIME
    • GNOME
    • OpenPGP
    Mail
    EMail Inbox
    Calendar - Weekly View
    +4
    Inbox with preview
    69 alternatives
    4.4
    Very Good15 reviews
  2. RetroShare icon
     163 likes

    RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and .

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    • OpenSSL
    • OpenPGP
    Network tab with contact list and broadcast subtab open. The subtab shows text and image sent by one contact to all connected contacts.
    RetroShare screenshot 1
    RetroShare screenshot 2
    +2
    RetroShare screenshot 3
    136 alternatives
  3. GnuPG icon
     153 likes

    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 directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.

    Cost / License

    Application type

    Platforms

    • Mac
    • Linux
    • PortableApps.com
    • Xfce
    • OpenPGP
    GnuPG Shell running GnuPG on Windows
    41 alternatives
  4. Mailpile icon
     117 likes

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • OpenPGP
    Mailpile screenshot 1
    Mailpile screenshot 1
    59 alternatives
  5. WinGPG icon
     6 likes

    An open-source system tray utility for Windows, giving you quick access to your GnuPG keyring at any time with the ability to encrypt, decrypt and sign files on the fly.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • OpenPGP
    The key creation dialog with calendar for choosing an expiration date, if desired
    Windows Explorer context menu integration
    The "PIN Entry" dialog that asks for a key's passphrase
    20 alternatives
  6. MailMate icon
     22 likes

    Mac email client with extensive keyboard control, Markdown email composition, advanced search, smart mailboxes, and cryptographic encryption options.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • S/MIME
    • OpenPGP
    MailMate screenshot 1
    By default MailMate has a classic email client layout, but don’t let this fool you. MailMate is highly configurable.
    A special feature of MailMate is its tight integration with the Markdown markup language. Create nicely formatted emails using simple plain text.
    +2
    Security is taken seriously by MailMate. This is best illustrated by the Security preferences pane. You have full control of image blocking, spam filtering (third party software), and you can send/receive messages using either OpenPGP or S/MIME.
    67 alternatives
  7. GoAnywhere OpenPGP Studio™ is a free desktop tool that makes it easy to protect sensitive files using the popular OpenPGP encryption standard. Documents can be encrypted, decrypted, signed and verified from your PC or workstation using this...

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • OpenPGP
    Encrypt
    Key Manager
    Key Preferences
    15 alternatives
  8. FlowCrypt icon
     17 likes

    FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted.

    Cost / License

    • Freemium
    • Open Source

    Platforms

    • Android
    • iPhone
    • Google Chrome
    • Brave
    • Firefox
    • OpenPGP
    FlowCrypt screenshot 1
    FlowCrypt screenshot 1
    FlowCrypt screenshot 2
    +1
    FlowCrypt screenshot 3
    27 alternatives
  9. APG icon
     10 likes

    Android Privacy Guard (APG) is a free and open source application for Android devices, created by Thialfihar, that lets you encrypt and decrypt single files or emails. Its goal is to provide a similar .

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Android
    • Android Tablet
    • OpenPGP
    APG screenshot 1
    APG screenshot 2
    11 alternatives
  10. Runbox icon
     6 likes

    Runbox offers email hosting, domain hosting, and web hosting services, as well as custom-made email solutions

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • OpenPGP
    Webmail
    Access
    Filter
    +2
    Preferences
    57 alternatives
  11. GNUPGK icon
     3 likes

    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 it can be easy to right click and decrypt or decrypt.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • OpenPGP
    GNUPGK screenshot 1
    4 alternatives
  12. gpg4o icon
     1 like

    OpenPGP Plugin for Outlook 2010/13/16.

    Cost / License

    • Free Personal
    • Proprietary

    Platforms

    • Windows
    • Microsoft Office Outlook
    • OpenPGP
    gpg4o screenshot 1
    3 alternatives
  13. MailDroid icon
     3 likes

    Need a great working email client on Android? MailDroid is the one you should download! Has the power of Outlook and Thunderbird for your Android device.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Android
    • S/MIME
    • OpenPGP
    MailDroid screenshot 1
    MailDroid screenshot 2
    MailDroid screenshot 3
    3 alternatives
  14. Privatoria icon
     9 likes

    Privatoria.net is a service which provides secure communication, anonymous surf and secure file sharing for individuals and business. All security services are united together in Privatoria. It includes Secure VPN and anonymous proxy, that enable surf anonymously, change IP...

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • OpenPGP
    Privatoria is your secure and confidential internet.
Secure communication, anonymous surf and secure file sharing
    All security services are united together in Privatoria. It includes Secure VPN and Anonymous Proxy, that enable surf anonymously, change IP, unblock sites, Anonymous E-mail, Secure Chat, Secure Call, Secure Video Chat for secure communications and Secure file sharing via FTP and Secure Data Storage.
    An online chat software that provides text, voice and video one-to-one communication between two or more companions Privatoria server’s involvement
    +1
    Our internet privacy software enables users to get an access to secure storage in cloud and transfer files and messages online safely and reliably
    84 alternatives
  15. Launchpad-Getkeys is a script (comes packaged in a .deb) that automatically imports all missing GPG keys, even if you're behind a firewall. It was initially created by blackgr @ ubuntuforums but then [webupd8] decided to completely re-write the script so I can add some...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • OpenPGP
    launchpad-getkeys screenshot 1
    7 alternatives
  16. WebPG icon
     2 likes

    WebPG is a free, open source suite of tools to bring OpenPGP (GnuPG/PGP, gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the common man.

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome
    • Thunderbird
    • SeaMonkey
    • Chromium
    • Firefox
    • OpenPGP
    WebPG screenshot 1
    WebPG screenshot 1
    WebPG screenshot 2
    +1
    WebPG screenshot 3
    16 alternatives