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Roundcube alternatives · Email

Roundcube alternatives with a Linux app

The Roundcube listing does not include a Linux app. 23 of the 125 other email apps in this directory list a Linux app.

Roundcube is free to use. 19 of them are free or have a free plan.

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

The 12 closest to Roundcube

  1. Zimbra

    Self-hosted email, calendar and file sharing for organizations

    • Roundcube has a free plan. Zimbra does not.
    • Only Zimbra lists Windows, macOS, Linux, iOS and Android apps.
    • Zimbra also covers tasks and calendar.
    Zimbra vs RoundcubeZimbra pricing and details

  2. Thunderbird

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

    • Thunderbird is free. Roundcube is free.
    • Only Thunderbird lists Windows, macOS, Linux and Android apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    Thunderbird vs RoundcubeThunderbird 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). Roundcube is free.
    • Only Mailspring lists macOS, Windows and Linux apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    Mailspring vs RoundcubeMailspring pricing and details

  4. Fastmail

    Paid, ad-free email with calendar, contacts and custom domains

    • Fastmail starts at $3 per user / month, billed yearly (Basic); Individual is $5, billed yearly. Roundcube is free.
    • Roundcube has a free plan. Fastmail does not, though it has a free trial.
    • Only Fastmail lists Windows, macOS, Linux, iOS and Android apps.
    • Roundcube is open source and self-hostable, according to its own site.
    Fastmail vs RoundcubeFastmail pricing and details

  5. iRedMail

    Open-source mail server installer for Linux and BSD

    • iRedMail starts at $499 for a 1-year iRedAdmin-Pro license, $250 per year to renew. Roundcube is free.
    • Only iRedMail lists a Linux app.
    • Only Roundcube lists a web app.
    • iRedMail also covers calendar.
    iRedMail pricing and details

  6. Proton Mail

    End-to-end encrypted email service based in Switzerland

    • Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly. Roundcube is free.
    • Only Proton Mail lists macOS, Windows, Linux, iOS and Android apps.
    • Proton Mail is end-to-end encrypted, according to its own site.
    • Roundcube is self-hostable, according to its own site.
    Proton Mail pricing and details

  7. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Roundcube is free.
    • Only Tuta Mail lists Windows, macOS, Linux, iOS and Android apps.
    • Tuta Mail is end-to-end encrypted, according to its own site.
    • Roundcube is self-hostable, according to its own site.
    Tuta Mail pricing and details

  8. Evolution

    GNOME's free mail, calendar and address book app

    • Evolution is free. Roundcube is free.
    • Only Evolution lists a Linux app.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    Evolution pricing and details

  9. Claws Mail

    Lightweight GTK email and news client, free under the GPL

    • Claws Mail is free. Roundcube is free.
    • Only Claws Mail lists Linux and Windows apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    Claws Mail pricing and details

  10. Betterbird

    A fork of Thunderbird with extra features and bug fixes

    • Betterbird is free. Roundcube is free.
    • Only Betterbird lists Windows, macOS and Linux apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    Betterbird pricing and details

  11. NeoMutt

    Command-line mail reader forked from Mutt with extra features

    • NeoMutt is free. Roundcube is free.
    • Only NeoMutt lists Linux and macOS apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    NeoMutt pricing and details

  12. aerc

    Terminal email client with Vim-style keys and git-email support

    • aerc is free. Roundcube is free.
    • Only aerc lists Linux and macOS apps.
    • Only Roundcube lists a web app.
    • Roundcube is self-hostable, according to its own site.
    aerc pricing and details

11 more that list a Linux app

All 23 in one table

Common questions

Which Roundcube alternatives have a Linux app?

Zimbra, Thunderbird, Mailspring, Fastmail, iRedMail, Proton Mail, Tuta Mail, Evolution and 15 more list a Linux app.

Does Roundcube have a Linux app?

The Roundcube listing does not include a Linux app. It lists Web.

Which of these email apps are free?

Thunderbird, Mailspring, iRedMail, Proton Mail, Tuta Mail, Evolution, Claws Mail, Betterbird and 11 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 Roundcube: the alternatives its listing names first, then the tools that share the most features with it.