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    Roundcube Alternatives

    Roundcube is described as 'webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking' and is a very popular WebMail Provider in the Office & Productivity category. There are more than 25 alternatives to Roundcube for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Linux, Windows and Mac. The best alternative is Rainloop, which is both free and Open Source. Other great apps like Roundcube are Mailpile (Free, Open Source), Isotope Mail Client (Free, Open Source), Zimbra Collaboration Suite (Freemium, Open Source) and Horde (Free, Open Source).

    This page was last updated Jun 17, 2021

      • FreeOpen Source
      • Online
      • Self-Hosted
      • Nextcloud
      • JavaScript
      • PHP
      • Cloudron
      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.
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      Rainloop vs Roundcube opinions
      Almost everyone thinks Rainloop is a great alternative to Roundcube.
      PHP based and customizable more than roundcube, more modern ui
      Positive comment over 4 years ago

      mandrael It's popular, modern programmed, faster than roundcube, but not so feature rich. Much sits below the surface though.
      Positive comment over 1 year ago

    1. 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.


      1.0.0 Release Candidate 6 from 2019 is the last version on GitHub ( Possibly the development has been stopped.

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      Mailpile vs Roundcube opinions
      Some users think Mailpile is a great alternative to Roundcube, some don't.
      Mailpile is single-user (personal) environment
      Negative comment over 3 years ago

      Mailpile needs to run on a computer
      Negative comment about 4 years ago


    2. Microservice based webmail client built with ReactJS and Spring. Minimalistic webmail client which currently has the main features of any other mail client (read mail, compose mail, organize mail folders...).
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      Almost everyone thinks Isotope Mail Client is a great alternative to Roundcube.
    3. 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.
      • FreeOpen Source
      • Online
      • Self-Hosted
      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.
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      Most users think Horde is a great alternative to Roundcube.

    4. SOGo is groupware server with a focus on scalability and open standards.
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    5. Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.
      No screenshots yet
    6. hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
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      hMail Server vs Roundcube opinions
      pros, cons and recent comments
      hmailserver is a "mail server" not webmail client
      Negative comment 7 months ago

    7. Take back control of your email with this easy-to-deploy mail server in a box. Mail-in-a-Box turns a fresh cloud computer into a working mail server.
      • FreemiumOpen Source
      • Linux
      • BSD
      • Self-Hosted
      A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support. Easy, fast deployment in LESS THAN 1 MINUTE. View YouTube Video to check how easy it is.
    Showing 10 of 29 alternatives