Software Alternatives, Accelerators & Startups

Mailvelope

Mailvelope open source project. OpenPGP in your browser.

Some of the top features or benefits of Mailvelope are: User-Friendly Interface, Integration with Webmail, Open Source, Cross-Platform Compatibility, and PGP Encryption. You can visit the info page to learn more.

Best Mailvelope Alternatives & Competitors in 2025

The best Mailvelope alternatives based on verified products, community votes, reviews and other factors.
Filter: 10 Open-Source Alternatives. Latest update:

  1. 36

    Secure email with absolutely no compromises. Get your free encrypted email account today.

    freemium €5.0 / Monthly (user - 5 GB)

    /protonmail-alternatives
  2. 27

    Security extension to Mozilla Thunderbird and SeaMonkey

    /enigmail-alternatives
  3. The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

    Visit website paid $19.5 / Monthly (Pro)

    Visit website
  4. 21

    Get your encrypted mailbox for free.

    Open Source

    /tutanota-alternatives
  5. 11

    Skizzle is the most secure way to share end-to-end encrypted files through email, backed by blockchain

    Open Source freemium $5.0 / Monthly

    /skizzle-email-alternatives
  6. 15

    GPGMail is an open source plugin for Apple Mail.

    /gpgmail-alternatives
  7. 17

    mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.

    /mailbox-org-alternatives
  8. 10

    Unofficial desktop app for ProtonMail and Tutanota end-to-end encrypted email providers

    /electronmail-alternatives
  9. 13

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

    /flowcrypt-alternatives
  10. Pool of places to publish and search OpenPGP public keys.

    /openpgp-keyserver-alternatives
  11. Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

    /thunderbird-alternatives
  12. Unofficial webextension for ProtonMail

    /protonmail-extension-alternatives
  13. Our mission is to help & empower ppl to choose privacy first products as a way of creating, consuming & sharing their data in the digital world.

    /privacy-first-products-alternatives
  14. Kleopatra is a certificate manager and GUI for GnuPG.

    /kleopatra-alternatives
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