Thunderbird AlternativesOnly apps categorised as Contact Managers

The best Contact Manager alternative to Thunderbird is Evolution, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and five of them are Contact Managers so hopefully you can find a suitable replacement. Other interesting Contact Manager alternatives to Thunderbird are Koma-Mail, Clyton, sup and Flectar Mail.

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Thunderbird alternatives are mainly Contact Managers, but if you're looking for Email Clients or Calendar Apps you can filter on that. Other popular filters include Linux, Open Source, iPhone, Kindle Fire, Windows, Mac and Android. 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.
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Alternatives list

  1. Evolution icon

    Evolution

     212 likes

    Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

    75 Evolution alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • BSD
    • Flathub
    • S/MIME
    • GNOME
    • OpenPGP
    • US flagUnited States
    Mail
    Good alternative?
     
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    5
  2. Koma-Mail icon

    Koma-Mail

     4 likes

    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.

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • DE flagGermany
    • European Union flagEU
    Koma-Mail screenshot 1
    Good alternative?
     
  4. Clyton icon

    Clyton

     1 like

    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.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    • US flagUnited States
    Clyton screenshot 1
    Good alternative?
     
  5. sup icon

    sup

     13 likes

    Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code insertion via a hook system, and more.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    search & results
    Good alternative?
     
  6. Flectar Mail icon

    Flectar Mail

     3 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

    Platforms

    • Mac
    • Windows
    • Linux
    • ES flagSpain
    • European Union flagEU
    Flectar Mail screenshot 1
    Good alternative?
     
5 of 5 Thunderbird alternatives