Alternatives to Mailvelope

Browser extension that adds OpenPGP encryption to webmail. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as Mailvelope.

  • Proton Mail

    Official Proton Mail apps for reading and sending end-to-end encrypted email on phones, desktops and the web.

    FreemiumProprietaryWindowsmacOSLinuxAndroidiOSWeb

    Proton Mail replaces your existing webmail with an end-to-end encrypted email service and apps on all major platforms, but requires a Proton account and is not open source.

  • Mailfence

    Encrypted email service from Belgium with OpenPGP support, calendars, contacts and document storage.

    FreemiumProprietaryAndroidiOSWeb

    Mailfence is a hosted email service with OpenPGP encryption built into the browser plus calendars and contacts, but it means switching providers and is not open source.

  • Gpg4win

    GnuPG packaged for Windows with the Kleopatra key manager, for signing and encrypting files and email.

    FreeOpen sourceWindows

    Gpg4win moves OpenPGP email encryption to Outlook on Windows through GpgOL, with keys managed in Kleopatra instead of stored in the browser.

  • GPG Suite

    An OpenPGP toolkit for macOS for encrypting, signing and verifying files and email.

    FreemiumProprietarymacOS

    GPG Suite handles OpenPGP keys and Apple Mail encryption on macOS only, and its GPG Mail component requires a paid subscription.

  • OpenKeychain

    An open-source Android app that manages OpenPGP keys and encrypts, decrypts and signs messages and files.

    FreeOpen sourceAndroid

    OpenKeychain manages OpenPGP keys on Android and provides encryption to mail apps such as K-9 Mail, rather than working in desktop browser webmail.

Also worth comparing

These listings name Mailvelope as their own alternative, so the relationship runs both ways.

  • FlowCrypt

    A browser extension that adds OpenPGP encryption for sending and receiving email in Gmail.

    FreemiumProprietaryBrowser extension

    Mailvelope is a free, AGPL-3.0 open-source browser extension that adds OpenPGP to a defined list of webmail sites rather than only Gmail, with keys stored in the browser.

Similar software

Related functionality, not a direct replacement.