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Drag alternatives · Email

Open-source alternatives to Drag

Drag is not described as open source on its own site. 39 of the 125 other email apps in this directory are open source, according to their own sites.

Drag is a paid product with a free trial, starting at $12 per user / month, billed yearly. 33 of them are free or have a free plan.

39 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

The 12 closest to Drag

  1. Wino Mail

    Free, open source mail and calendar app for Windows

    • Wino Mail has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists a web app.
    • Only Drag lists macOS, iOS and Android apps.
    • Only Drag lists a browser extension.
    Wino Mail pricing and details

  2. Thunderbird

    Free, open-source email app for Windows, macOS, Linux and Android

    • Thunderbird is free. Drag starts at $12 per user / month, billed yearly.
    • Thunderbird has a free plan. Drag does not, though it has a free trial.
    • Only Thunderbird lists a Linux app.
    • Only Drag lists a web app.
    Thunderbird pricing and details

  3. Mailspring

    Open-source desktop email client for Mac, Windows and Linux

    • Mailspring starts at $8 per month, or $85 per year (Mailspring Pro). Drag starts at $12 per user / month, billed yearly.
    • Mailspring has a free plan. Drag does not, though it has a free trial.
    • Only Mailspring lists a Linux app.
    • Only Drag lists a web app.
    Mailspring pricing and details

  4. Inbox Zero

    Open source AI email assistant for Gmail and Outlook

    • Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly). Drag starts at $12 per user / month, billed yearly.
    • Inbox Zero is open source and self-hostable, according to its own site.
    • Inbox Zero also covers chat assistant, email client and inbox filtering.
    • Drag also covers templates, tasks, shared inbox, kanban boards and AI agents.
    Inbox Zero pricing and details

  5. SimpleLogin

    Open-source email aliases that forward to your own inbox

    • SimpleLogin starts at $36 per year ($4 billed monthly). Drag starts at $12 per user / month, billed yearly.
    • SimpleLogin has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists macOS and Windows apps.
    • SimpleLogin is open source and self-hostable, according to its own site.
    SimpleLogin pricing and details

  6. addy.io

    Email alias forwarding that hides your real address from sites

    • addy.io starts at $1 per month, billed yearly (Lite). Drag starts at $12 per user / month, billed yearly.
    • addy.io has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists macOS and Windows apps.
    • addy.io is open source and self-hostable, according to its own site.
    addy.io pricing and details

  7. Zimbra

    Self-hosted email, calendar and file sharing for organizations

    • Only Zimbra lists a Linux app.
    • Only Drag lists a browser extension.
    • Zimbra is open source and self-hostable, according to its own site.
    • Zimbra also covers calendar and email client.
    Zimbra pricing and details

  8. Horde

    Free open-source webmail, calendar, contacts and tasks suite

    • Horde is free. Drag starts at $12 per user / month, billed yearly.
    • Horde has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists macOS, Windows, iOS and Android apps.
    • Only Drag lists a browser extension.
    Horde pricing and details

  9. Kolab Now

    Swiss-hosted email, calendars, contacts and tasks

    • Kolab Now starts at CHF 9.90 per month (Group Account). Drag starts at $12 per user / month, billed yearly.
    • Only Drag lists macOS, Windows, iOS and Android apps.
    • Only Drag lists a browser extension.
    • Kolab Now is open source, according to its own site.
    Kolab Now pricing and details

  10. Guerrilla Mail

    Disposable email inbox that needs no sign-up

    • Guerrilla Mail starts at $9.99 per year. Drag starts at $12 per user / month, billed yearly.
    • Guerrilla Mail has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists macOS, Windows, iOS and Android apps.
    • Only Drag lists a browser extension.
    Guerrilla Mail pricing and details

  11. hMailServer

    Free open-source mail server that runs on Windows

    • hMailServer is free. Drag starts at $12 per user / month, billed yearly.
    • hMailServer has a free plan. Drag does not, though it has a free trial.
    • Only Drag lists a web app.
    • Only Drag lists macOS, iOS and Android apps.
    hMailServer pricing and details

  12. BlueMind

    Open-source collaborative email and calendar with Outlook support

    • Only Drag lists macOS, Windows, iOS and Android apps.
    • Only Drag lists a browser extension.
    • BlueMind is open source, according to its own site.
    • BlueMind also covers calendar and email client.
    BlueMind pricing and details

27 more that are open source

All 39 in one table

Common questions

Is there an open-source alternative to Drag?

Yes. Wino Mail, Thunderbird, Mailspring, Inbox Zero, SimpleLogin, addy.io, Zimbra, Horde and 31 more are open source, according to their own sites.

Is Drag open source?

Drag is not described as open source on its own site. The listing was checked on Oct 6, 2026 against the pages it cites.

Which of these email apps are free?

Wino Mail, Thunderbird, Mailspring, SimpleLogin, addy.io, Horde, Guerrilla Mail, hMailServer and 25 more are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Drag: the alternatives its listing names first, then the tools that share the most features with it.