Thunderbird Alternatives for Windows

There are many alternatives to Thunderbird for Windows if you are looking for a replacement. The best Windows alternative is Claws Mail, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Thunderbird are SeaMonkey, Betterbird, Mailbird and eM Client.

filter to find the best alternatives

Thunderbird alternatives are mainly Email Clients, but if you're looking for Calendar Apps or Group Chat Apps you can filter on that. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Thunderbird.
Thunderbird iconThunderbird
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Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.

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Thunderbird alternatives page was last updated Feb 13, 2025
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Alternatives
  1. Koma-Mail icon

    Koma-Mail

     4 likes
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    Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop.

    67 Koma-Mail alternatives

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Windows
    Koma-Mail screenshot 1
    Discontinued

    Development of KOMA Code apps stopped in January 2017. Last version of Koma-Mail, 3.83, released in March 2012, can be still downloaded from the official website.

    Koma-Mail Features

    1.  Multiple Account support
    2.  Spam Filter
    3.  Portable
    4.  Built-in RSS reader
    5.  IMAP Support
    6.  Support for Unicode
    7.  Multiple languages
    8.  POP3 Support

    Koma-Mail VS Thunderbird

     
  2. TouchMail icon

    TouchMail

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    Navigate messages with zooms and swipes across your messages.

    Turn your email into colorful, visual tiles you can explore with your fingers or mouse. Rich 3D visualizations and familiar gestures make TouchMail the fastest and easiest way to keep your inbox clean and keep import.

    68 TouchMail alternatives

    License model

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    Visual mail

    TouchMail Features

    1.  IMAP Support

    TouchMail VS Thunderbird

     
  4. Clyton icon

    Clyton

     1 like
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    Clyton is an email client with advanced security and spam filtering features. Although priced for the general public, Clyton possesses the reliability and security required by businesses.

    18 Clyton alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    Clyton screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  No Coding Required
    2.  Ad-free
    3.  Email Organizer
    4.  Mail Filtering
    5.  Spam Filter
    6.  No Tracking
    7.  Multiple Account support
    8.  Reminders
    9.  Portable
    10.  Email template editor
    11.  Dark Mode
    12.  Contacts

    Clyton VS Thunderbird

     
  5. Ad
    Screenshot
    Mailbird icon
    Mailbird

    Streamline your email experience by managing multiple accounts, integrating apps like Slack and Google Calendar, and using AI-driven features like drafting and spam prevention. Customize your workspace with themes, notifications,...

    https://www.getmailbird.com
    Learn More
  6. Pegasus Mail icon

    Pegasus Mail

     13 likes
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    Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks.

    20 Pegasus Mail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • NZ flagNew Zealand

    Platforms

    • Windows
    Screenshot taken January, 2018. Fresh install.

    Properties

    1.  Lightweight

    Features

    1.  Support for Multiple Users
    2.  IMAP Support
    3.  POP3 Support

    Pegasus Mail VS Thunderbird

     
  7. TrulyMail icon

    TrulyMail

     3 likes
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    TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).

    59 TrulyMail alternatives

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Windows
    Main Window
    Discontinued

    The program is no longer developed. Last version, 6.0.2, released in January 2017, can be still downloaded from SoftPedia.

    TrulyMail Features

    1.  Text to Speech
    2.  Portable
    3.  Integrated Spam Protection
    4.  Integrated Search

    TrulyMail VS Thunderbird

     
  8. Gmail Desktop icon

    Gmail Desktop

     1 like
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    Nifty Gmail desktop app for macOS, Linux & Windows.

    17 Gmail Desktop alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Gmail Desktop screenshot 1

    Gmail Desktop Features

    1.  Specific for 64-Bit

    Gmail Desktop VS Thunderbird

     
    Comments about Gmail Desktop as an Alternative to Thunderbird
    GeminiDomino
    Negative •Feb 21, 2023
    5

    Only works for one provider.

    Thunderbird Icon
    Gmail Desktop icon
    • Gmail Desktop is Free and Open SourceThunderbird is also Free and Open Source
  10. EmailTray icon

    EmailTray

     3 likes
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    EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks messages, prioritizes them into 4 Inboxes and alerts you only to the most important.

    58 EmailTray alternatives

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Windows
    • Android
    EmailTray screenshot 1

    EmailTray Features

    1.  IMAP Support
    2.  POP3 Support
    3.  Email Notifications

    EmailTray VS Thunderbird

     
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