Thunderbird Alternatives

One of the most popular alternatives to Thunderbird is Betterbird, which is free and open source. Other popular alternatives are K-9 Mail, Evolution, Microsoft Outlook and SeaMonkey. There's no shortage of Email Clients like Thunderbird, with more than 100 alternatives for Windows, Mac, Linux, Android and iPhone.

filter to find the best alternatives

Most Thunderbird alternatives are Email Clients, but you can also narrow the list to Calendar Apps or Contact Managers. Other popular filters are iPhone, Linux, Open Source, Android and Windows. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
Thunderbird alternatives page was last updated

Alternatives list

  1. Foxmail icon
     20 likes

    Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.

    41 Foxmail alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2010

    Platforms

    • Windows
    • Mac
    Good alternative?
     
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    1
  2. MailMate icon
     23 likes

    Mac IMAP email client featuring keyboard control, Markdown email composition, advanced search capabilities, smart mailboxes, automatic signature handling, cryptographic options with OpenPGP/S-MIME, tagging, multiple notifications, and customizable layouts including widescreen.

    78 MailMate alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2015

    Platforms

    • Mac
    • OpenPGP
    • S/MIME
    Good alternative?
     
  3. HCL Domino icon
     6 likes

    An enterprise application server that integrates information into a single workspace, integrates also a full mail server

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2009

    Platforms

    • Windows
    • Mac
    • Online
    Good alternative?
     
  4. Shortwave icon
     17 likes

    Shortwave is an email app that takes the pain out of managing your inbox, making it effortless to stay organized, productive, and responsive.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2023

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Android Tablet
    • Gmail
    Good alternative?
     
  5. Librem Mail icon
     3 likes

    End-to-end encrypted email used by nearly everybody already.

    45 Librem Mail alternatives

    Cost / License

    • Paid
    • Open Source

    Application type

    Since

    • Since 2019

    Platforms

    • Android
    • Android Tablet
    Good alternative?
     
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    1
  6. Scribe Mail icon
     8 likes

    Scribe is a small portable email client with an intergrated contact database and calendar. It supports all the major internet mail protocols and uses international standards where possible. Scribe doesn't required installing or uninstalled and can be used from a removable...

    Cost / License

    Application type

    Since

    • Since 2010

    Platforms

    • Windows
    • Mac
    • Linux
    • Haiku
    Good alternative?
     
  7. Polymail icon
     22 likes

    The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2016

    Platforms

    • Windows
    • Mac
    • Online
    • iPhone
    • iPad
    Good alternative?
     
  8. Multi-Account Zoho client for Mac.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2020

    Platforms

    • Mac
    • Zoho Mail
    Good alternative?
     
  9. Nylas Mail Lives is a fork of Nylas Mail that fixes many longstanding issues, improves the client experience, and is committed to publish new releases.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2017

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    • Self-Hosted
    Good alternative?
     
  10. Flectar Mail icon
     6 likes

    Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.

    Cost / License

    Application type

    Since

    • New

    Platforms

    • Windows
    • Mac
    • Linux
    Good alternative?
     
  11. Productivity-centered email application streamlines inbox management, uses AI for drafting responses, automates snippets, summarizes conversations, enables timely sends, integrates calendar and CRM, and includes collaborative features like live views and comments.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2019

    Platforms

    • Windows
    • Mac
    • Online
    • Android
    • iPhone
    • iPad
    • Android Tablet
    Good alternative?
     
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    1
  12. Mail is designed to let you manage your email quickly and effortlessly. Its interface is based on conversations, so you can read an entire discussion without having to click from message to message.

    Cost / License

    Application type

    Since

    • Since 2016

    Platforms

    • Linux
    • elementary OS
    Good alternative?
     
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