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Open Source Shift Alternatives

The best open source alternative to Shift is Thunderbird. If that doesn't suit you, our users have ranked more than 25 alternatives to Shift and 11 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Shift are Station, Mailspring, Hamsket and LucaMail.

Shift alternatives are mainly Email Clients but may also be Web Browsers or Instant Messengers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Shift.
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Shift iconShift
  35
  • Mac
  • Windows

Shift is an email client that makes navigating between Mail, Calendar, Drive + your favorite Apps & Extensions easy...

Learn more about Shift

  1. Thunderbird icon

    Thunderbird

    • Mac
    • Windows
    • Linux
    • Homebrew
    • PortableApps.com
    • Chocolatey
    • Flathub
    • AppImageHub
    • Snapcraft
    • BSD
    • Haiku
    96 alternatives to Thunderbird 

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

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    Features
    1.  Extensible by Plugins/ExtensionsThunderbird can be extended with add-ons, plugins and extensions.
    2.  Multiple Account supportThunderbird support multiple accounts without the need to logout and login
    3.  Calendar IntegrationThunderbird lets you sync your tasks and events with your calendar application.
    4.  Email OrganizerThunderbird allows you to take control of your inbox by filtering and control tools.
    5.  Dark ModeThunderbird supports dark mode for comfortable usage in low light conditions.
    6.  Support for ThemesYou can use themes and templates to change the look and feel of Thunderbird.
    7.  Integrated Password ManagerThunderbird lets you access all the passwords you’ve saved across your different devices.
    8.  Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Thunderbird.
    9.  PortableThunderbird can be used from a USB stick or similar with no prior installation.
    Screenshot
    Dark Mode
  2. Station icon

    Station

    • Mac
    • Windows
    • Linux
    • Microsoft Edge
    • Google Chrome
    • Brave
    23 alternatives to Station 

    Station is the first open-source smart browser for busy people. A single place for all of your web applications.

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    Features
    Discontinued

    The project is not actively maintained anymore. Last version, 2.0.9, released in July 2021, can be still downloaded from GitHub

    Screenshot
    Screenshot
    Screenshot
    Station vs Shift opinions
    Almost everyone thinks Station is a great alternative to Shift.
    Guest

    Gives me the functionality of multiple apps, in one location, for free. Unlike Shift.

    Top positive comment ago
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    1
    EtchyLitchi

    Free for individuals, basic options are open contrary to Shift. Many options available for Station.

    Top positive comment ago
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    -1
    Guest

    Best free alternative shift

    Positive comment ago
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    0
    Guest

    It is free! Not only that, but it gives the most important feature of sleeping windows when they are not in use. Shift (and other programs like it) would be worth it if they didn't charge a yearly fee.

    Positive comment ago
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    2
    Guest

    Everything from Shift, but for free. Best free alternative I have tried

    Positive comment ago
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    5
    Guest

    It's almost the same exact thing but free

    Positive comment ago
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    9


  3. Mailspring icon

    Mailspring

    • Mac
    • Windows
    • Linux
    • Arch Linux
    • Fedora
    • Ubuntu
    44 alternatives to Mailspring 

    Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.

     Suggest and vote on features
    Features
    1.  Unified inboxView e-mails (or similar) from all accounts in one unified view with Mailspring.
    2.  Multiple Account supportMailspring support multiple accounts without the need to logout and login
    3.  Dark ModeMailspring supports dark mode for comfortable usage in low light conditions.
    4.  Ad-freeMailspring doesn't contain any form of external advertising.
    5.  Email OrganizerMailspring allows you to take control of your inbox by filtering and control tools.
    6.  Support for ThemesYou can use themes and templates to change the look and feel of Mailspring.
    7.  Extensible by Plugins/ExtensionsMailspring can be extended with add-ons, plugins and extensions.
    Clean design with integrated search and swipe gestures
    Built-in dark theme
    Advanced mailbox analytics
    Mailspring vs Shift opinions
    pros, cons and recent comments
    Guest

    Shift does so many other things (e.g. Messenger, Asana, AWS etc.). Mailspring is only an email client.

    Negative comment ago
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    0
    Guest

    It is just an email client, not a productivity app aggregator.

    Negative comment ago
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    1
  4. Hamsket icon

    Hamsket

    • Mac
    • Windows
    • Linux
    13 alternatives to Hamsket 

    Hamsket is a fork of Rambox that was started when Rambox moved from being totally free to a "freemium" model.

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    Features
    1.  Multiple Account supportHamsket support multiple accounts without the need to logout and login
    2.  PortableHamsket can be used from a USB stick or similar with no prior installation.
    Screenshot
  5. LucaMail icon

    LucaMail

    • Mac
    • Windows
    • Linux
    75 alternatives to LucaMail 

    LucaMail is an open source, cross-platform email client. LucaMail is developed to provide cross-platform alternative to Email Clients that are really exists. LucaMail focuses on modern technologies as well as maintaining a user-friendly UI.

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    Features
    1.  Dark ModeLucaMail supports dark mode for comfortable usage in low light conditions.
    Screenshot
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  6. Kube icon

    Kube

    • Mac
    • Linux
    33 alternatives to Kube 

    Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access to all your mail, contacts, calendars, notes, todo's and more.

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    Features
    Screenshot
  7. Caliopen icon

    Caliopen

    • FreeOpen Source
    • Online
    44 alternatives to Caliopen 

    All of your private messages (Email, Facebook, Twitter, Instagram etc.) through a single login.

     Suggest and vote on features
    Features
    1.  Unified inboxView e-mails (or similar) from all accounts in one unified view with Caliopen.
    Screenshot
    Screenshot
  8. Nylas Mail Lives

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    33 alternatives to Nylas Mail Lives 

    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.

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    Features
    1.  Extensible by Plugins/ExtensionsNylas Mail Lives can be extended with add-ons, plugins and extensions.
    2.  Multiple Account supportNylas Mail Lives support multiple accounts without the need to logout and login
      Discontinued

      On its github page it states it is archived and is no longer maintained.

      Screenshot
    • ManageYum icon

      ManageYum

      • Mac
      • Windows
      • Linux
      17 alternatives to ManageYum 

      One desktop app for many apps, included Gmail, Inbox, Skype, Facebook Messenger, but also professional collaboration platforms like Salesforce, GitHub, Confluence, Bitbucket and many more.

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      Features
      Discontinued

      Official website no longer available, no updates on GitHub since June 2017.

    • Clovery icon

      Clovery

      • FreemiumOpen Source
      • Mac
      • Windows
      • Linux
      8 alternatives to Clovery 

      Clovery is an app that integrates all your favorite Google services tightly with your Mac and PC, lets you access these services quickly and work more productively.

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      Features
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    Showing 10 of 11 alternatives
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