Self-Hosted Roundcube Alternatives

There are many alternatives to Roundcube as a self-hosted solution if you are looking for a replacement. The best Self-Hosted alternative is Rainloop, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Roundcube and 17 are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Roundcube are Mailpile, Kolab, Zimbra Collaboration Suite and Mail-in-a-box.

filter to find the best alternatives

Roundcube alternatives are mainly WebMail Providers, but if you're looking for Email Clients or Mail Servers you can filter on that. Other popular filters include Self-Hosted and Open Source. These are just examples - use the filter bar below to find more specific alternatives to Roundcube.
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Alternatives list

  1. Rainloop icon
     58 likes

    Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make RainLoop Webmail a perfect choice for your email solution.

    13 Rainloop alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
    • Nextcloud
    • JavaScript
    • PHP
    • Cloudron
     
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    3
    28
    Comments about Rainloop as an Alternative to Roundcube
    mandrael
    Positive
    1

    It's popular, modern programmed, faster than roundcube, but not so feature rich. Much sits below the surface though.

    Guest
    Positive
    3

    PHP based and customizable more than roundcube, more modern ui

    Review by a new / low-activity user.
    EgorSharin
    Negative
    1

    The old version (no longer maintained since 2022) is still open-source on GitHub. The new version is closed-source.

    Roundcube Icon
    Rainloop icon
    • Almost everyone thinks Rainloop is a great Roundcube alternative.

    • Rainloop is the most popular Web-based & Self-Hosted alternative to Roundcube.

    • Rainloop is the most popular Open Source & free alternative to Roundcube.

    • Rainloop is Free and Open SourceRoundcube is also Free and Open Source
  2. Mailpile icon
     117 likes

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.

    59 Mailpile alternatives

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • OpenPGP
     
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    3
    12
    Comments about Mailpile as an Alternative to Roundcube
    Guest
    Negative
    0

    Mailpie is a descktop application but Roundcube is a selfhosted application.

    Review by a new / low-activity user.
    Guest
    Negative
    1

    Mailpile needs to run on a computer

    Review by a new / low-activity user.
    Guest
    Negative
    -1

    Mailpile is single-user (personal) environment

    Review by a new / low-activity user.
    Roundcube Icon
    Mailpile icon
    • Some users think Mailpile is a great Roundcube alternative, some don't.

    • Mailpile is the most popular Linux alternative to Roundcube.

    • Mailpile is Free and Open SourceRoundcube is also Free and Open Source
  3. Kolab icon
     43 likes

    Kolab provides a FOSS communication & collaboration solution that can be completely self-hosted. Take back control of your data and access it via the webinterface, or existing mobile & desktop clients.

    48 Kolab alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Linux
    • Online
    • Self-Hosted
     
  4. Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

    46 Zimbra Collaboration Suite alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted
     
    • Zimbra Collaboration Suite is the most popular commercial alternative to Roundcube.

    • Zimbra Collaboration Suite is Paid and ProprietaryRoundcube is Free and Open Source
  5. Horde icon
     29 likes

    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
     
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    8
  6. OX App Suite icon
     15 likes

    The OX App Suite by Open-Xchange is web-based platform offering a suite of apps like an email client, calendar, contacts magement, cloud storage with synchronization and productivity apps for word processing, spreadsheets and presentations.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
     
    • OX App Suite is the most popular SaaS alternative to Roundcube.

    • OX App Suite is Free and Open SourceRoundcube is also Free and Open Source
  7. Cypht icon
     10 likes

    All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader :).

    12 Cypht alternatives

    Cost / License

    Application type

    Platforms

    • Self-Hosted
     
  8. CrossBox icon
     1 like

    Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.

    Cost / License

    • Subscription
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
     
    • CrossBox is the most popular Android, iPhone, iPad & Android Tablet alternative to Roundcube.

    • CrossBox is Paid and ProprietaryRoundcube is Free and Open Source
  9.  8 likes

    Self-hosted server for the Proton Mail client.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
     
  10. Webmail Lite icon
     17 likes

    Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail application, which is fast and easy to use. Whether you need a free web browser based email client software for Windows ASP.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
     
12 of 17 Roundcube alternatives