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FlowCrypt Alternatives

FlowCrypt is described as 'Simple end-to-end encryption to secure email and attachments on Gmail, Outlook or any other email provider' and is an app in the security & privacy category. There are more than 10 alternatives to FlowCrypt for a variety of platforms, including Online / Web-based, Mac, Linux, Windows and Android. The best alternative is Proton Mail, which is both free and Open Source. Other great apps like FlowCrypt are Tutanota, mailbox.org, Yandex.Mail and Enigmail.

FlowCrypt alternatives are mainly WebMail Providers but may also be Calendar Apps or Email Clients. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of FlowCrypt.
This page was last updated May 12, 2022
FlowCrypt
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  • Freemium • Open Source
  • Android
  • iPhone
  • Google Chrome
  • Brave
  • Firefox
  • OpenPGP

Simple end-to-end encryption to secure email and attachments on Gmail, Outlook or any other email provider.

Learn more about FlowCrypt

  1. Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.

  2. Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps.

  4. mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.

  5. Yandex.Mail

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    • Free • Proprietary
    • Online
    • Windows Mobile
    • Android
    • iPhone
    • Java Mobile
    • Symbian S60
    • Android Wear

    Yandex.Mail for mobile is an inbox in your pocket which provides secure protection from spam and viruses.

  6. Enigmail

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    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • GnuPG
    • Thunderbird
    • SeaMonkey

    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .

  8. Mailvelope

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    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Microsoft Edge
    • Google Chrome
    • Firefox

    Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.

  9. Kolab Now

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    • Online
    • Software as a Service (SaaS)
    • DAVdroid

    Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

  10. Tildamail

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    • Free • Proprietary
    • Online

    Tildamail is a free, decentralized, and secure email system, developed by Stanford graduates. We are an end-to-end encrypted email system that protects your privacy. Tilda is a standard for DApps backed by self-sovereign data. User data never touches our servers.

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  11. Runbox

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    • Online
    • OpenPGP

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

  12. GPGMail

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    • Mac
    • GPGTools
    • Apple Mail

    GPGMail is a PGP plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard.

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Showing 10 of 21 alternatives