Alternatives to Walnut Secure Email for all platforms with any license

  • ProtonMail icon


    Secure email with absolutely no compromises, brought to you by MIT and CERN scientists. Swiss Based ProtonMail is incorporated in...

    Open Source Web / Cloud Android iPhone iPad

  • Mailpile icon


    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded...

    Open Source Mac Windows Linux Web / Cloud Self-Hosted

  • Tutanota icon


    Tutanota is a free and open source web-mail client that focuses on privacy. There's also an Android and an iOS app. All data is...

    Open Source Web / Cloud Android iPhone iPad

  • Enigmail icon


    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to...

    Open Source Mac Windows Linux Thunderbird SeaMonkey

  • Mailvelope icon


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

    Open Source Mac Windows Linux Chrome OS Chrome Firefox

  • GPGMail icon


    GPGMail is an open source plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the...

    Open Source Mac

  • icon offers a secure e-mail account for home and business use. The domain name,, is easy to remember and can be...

    Commercial Web / Cloud Windows Mobile Android iPhone Android Tablet iPad ... Kindle Fire

  • Secure Gmail icon

    Secure Gmail

    An extension to send secure, encrypted messages through Gmail. SecureGmail encrypts and decrypts emails you send in Gmail. This...

    Open Source Mac Windows Linux Chrome Gmail

  • Mailfence icon


    Mailfence provides a secure and private Email solution that value and respect your online privacy. State of the art security...

    Freemium Web / Cloud

  • SCRYPTmail icon


    SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate...

    Freemium Web / Cloud

  • EveryCloud icon


    EveryCloud’s cloud based spam filtering service blocks 99.99% of spam, viruses and even newsletters if required. Set spam reports to...

    Commercial Web / Cloud

  • WebPG icon


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

    Open Source Mac Windows Linux Chrome Thunderbird SeaMonkey ... Chromium Firefox

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  • Lockbin icon


    Lockbin is a web application for sending private email messages and files. People use it to send things like credit card numbers or...

    Freemium Mac Windows Linux Android Android Tablet

  • AnonymousSpeech

    Professional anonymity provider for secure anonymous email. Anonymous Domain and Hosting Offshore, Anonymous Surfing, SSL, Time...

    Freemium Web / Cloud

  • runbox icon


    Runbox provides secure email communication with Perfect Forward Secrecy SSL connections, Extended Validation, and options for PGP...

    Commercial Web / Cloud

  • Sendinc icon


    Secure email made simple Sendinc enables anyone to send and receive military-grade encrypted email in minutes and requires no...

    Commercial Web / Cloud

  • icon

    Encrypting email with is a simple way to protect your sensitive data. You can encrypt emails or text messages and only the...

    Free Web / Cloud

  • Sfletter icon

    Sfletter Warning

    You can send a protected attachment (PDF, JPEG) and a message to any email service that is available on Windows.

    Free Personal Windows

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  • icon Discontinued

    Sending confidential information such as passwords, account information and other sensitive data in emails and IM is not necessarily...

    Free Web / Cloud Windows Mobile Android iPhone HP webOS Firefox OS

  • Shazzlemail icon


    ShazzleMail is the first privacy-protective and surveillance-resistant secure email service.

    Free Personal Mac Windows Linux Android iPhone

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