Best Thunderbird Alternatives in 2021

    Thunderbird is described as 'free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox' and is one of the leading apps in the News & Books category. There are more than 50 alternatives to Thunderbird for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is K-9 Mail, which is both free and Open Source. Other great apps like Thunderbird are eM Client (Freemium), Evolution (Free, Open Source), Feedly (Freemium) and Claws Mail (Free, Open Source).

    This page was last updated Jun 24, 2021

    1. Bring your workspace together into one unified app. It’s everything your team has been looking for in a productivity and messaging app, but easier, and all with your email. Welcome to the shortest path to done.
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      Spike vs Thunderbird opinions
      pros, cons and recent comments
      Native onlye for Android, iOS, Windows and Mac, not a Linux app
      Positive comment 12 months ago

      1
      • FreeOpen Source
      • Linux
      • Online
      • Self-Hosted
      • OpenPGP
      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.
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      • Free PersonalProprietary
      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Android Wear
      • Kindle Fire
      TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.
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      TypeApp vs Thunderbird opinions
      Most users think TypeApp is a great alternative to Thunderbird.
      Professional looking interface, options available at a swipe of the finger tip. Very slick app.
      Positive comment about 4 years ago

      1
    2. Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi Account with editable html signatures. - Aliases management with custom SMPT
      Most users think Airmail is a great alternative to Thunderbird.
    3. The Bat! is a secure email client software, built to protect your correspondence against third-parties.
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      Most users think The Bat is a great alternative to Thunderbird.


      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • ProtonMail
      • Electron / Atom Shell
      • Tutanota
      ElectronMail is an Electron-based unofficial desktop client for ProtonMail and Tutanota end-to-end encrypted email providers. The app aims to provide enhanced desktop user experience enabling features that are not supported by the official in-browser web clients.
      ElectronMail vs Thunderbird opinions
      pros, cons and recent comments
      Thunderbird connects with servers that use standard protocols and with servers for which a plugin was developed. ElectronMail works with ProtonMail ONLY and was specifically designed for this provider. Tutanota support is deprecated since July 2019.
      Negative comment almost 2 years ago

      10
    4. Hamsket is a fork of Rambox that was started when Rambox moved from being totally free to a "freemium" model. Nightly build artifacts are available in Windows (Win64), Mac (DMG / App), and Linux (AppImage64 / RPM64 / DEB64 / Tarball64) packaging flavors.
      Hamsket vs Thunderbird opinions
      pros, cons and recent comments
      Hamsket is more like an alternate web browser. It doesn't provide an inbox or access to non-web services.
      Negative comment about 1 year ago

      1
    5. myMail is the smart email app for managing all your accounts on iOS and Android. Use myMail to manage messages in your Gmail, Hotmail, Live, Outlook, Yahoo, MSN, iCloud and AOL email accounts at once. The app also supports any IMAP and POP3-enabled mailbox.
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      myMail vs Thunderbird opinions
      Almost everyone thinks myMail is a great alternative to Thunderbird.
      karpovskiipa One of the best mobile email apps!
      Positive comment over 2 years ago

      3
    6. Trojitá, is a fast Qt IMAP e-mail client that respects open standards and facilitates modern technologies. Trojitá values vendor-neutrality that IMAP provides and is committed to be as interoperable as possible.
      Some users think Trojitá is a great alternative to Thunderbird, some don't.
    7. MailStore Home - A 100% free single-private-user desktop solution
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    Showing 30 of 89 alternatives