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 Web-based, Self-Hosted, Linux, Mac and Windows apps. The best Roundcube alternative is Rainloop, which is both free and Open Source. Other great apps like Roundcube are Mailpile, Zimbra Collaboration Suite, Horde and Kolab Community.

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Roundcube alternatives are mainly WebMail Providers but may also be Email Clients or Mail Servers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Roundcube.
Roundcube iconRoundcube
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Roundcube 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...

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Roundcube alternatives page was last updated Dec 20, 2024
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Alternatives
  1. Atmail Email Server icon

    Atmail Email Server

     7 likes
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    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.

    68 Atmail Email Server alternatives

    License model

    Application types

    Country of Origin

    • AU flagAustralia

    Platforms

    • Linux
    • Online
    Intuitive Webmail Interface

    Atmail Email Server Features

    1.  Group Mail

    Atmail Email Server VS Roundcube

     
  2. Cypht icon

    Cypht

     8 likes
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    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 :).

    11 Cypht alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Self-Hosted
    Cypht screenshot 1

    Cypht Features

    1.  End-to-End Encryption
    2.  JMAP
    3.  IMAP Support
    4.  Built-in RSS reader
    5.  POP3 Support
    6.  Modules
    7.  SMTP Support

    Cypht VS Roundcube

     
  4. Webmail Lite icon

    Webmail Lite

     17 likes
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    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.

    31 Webmail Lite alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Self-Hosted
    Afterlogic Webmail Lite

    Properties

    1.  Lightweight

    Features

    1.  Multiple Account support

    Webmail Lite VS Roundcube

     

  5. NeutronMail

     8 likes
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    Self-hosted server for the Proton Mail client.

    25 NeutronMail alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    Discontinued

    No longer supported

    NeutronMail Features

    1.  End-to-End Encryption
    2.  PGP Encryption
    3.  Web-Based

    NeutronMail VS Roundcube

     
  6. Squirrelmail icon

    Squirrelmail

     24 likes
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    SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers.

    16 Squirrelmail alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Self-Hosted
    • PHP
    Squirrelmail screenshot 1

    Squirrelmail Features

    1.  SMTP Support
    2.  IMAP Support
    3.  Exchange
    4.  On-premises software

    Squirrelmail VS Roundcube

     
  7. Isotope Mail Client icon

    Isotope Mail Client

     1 like
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    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...).

    11 Isotope Mail Client alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • ES flagSpain
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Kubernetes
    • Docker
    • OpenShift
    Inbox with some read e-mails
    Discontinued

    Last update on Dec 8, 2019.

    Isotope Mail Client Features

    1.  Autocompletion
    2.  No database needed
    3.  Drag and Drop
    4. Docker icon  Support for Docker
    5.  Web-Based
    6.  Rich text editing
    7.  Dockerized

    Isotope Mail Client VS Roundcube

     

    • Almost everyone thinks Isotope Mail Client is a great Roundcube alternative.

    • Isotope Mail Client is the most popular Windows & Mac alternative to Roundcube.

    • Isotope Mail Client is Free and Open SourceRoundcube is also Free and Open Source
  9. Postaci icon

    Postaci

     1 like
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    Postaci (Turkish for Postman) is multiplatform Webmail software which is database independent, multilanguage, POP3/IMAP, and fully MIME-compatible. While using POP3 mode to fetch messages it uses database fields to simulate IMAP folders, on which you can save, move, delete, and...

    19 Postaci alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Linux
    Discontinued

    Last commit on github : Jan 12, 2015. See https://github.com/Postaci-Webmail/Postaci

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  WYSIWYG Support
    3.  Spam Filter

    Postaci VS Roundcube

     

  10. CacoCloud

     10 likes
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    A simple, fast and secure PHP/AngularJS based single user feed and mail reader, password and bookmark manager. CacoCloud is divided into a RESTful PHP backend storing all data into a SQLite database and an SPA frontend based on AngularJs.

    14 CacoCloud alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Self-Hosted
    • AngularJS
    Feed reader
    Discontinued

    The project is no longer developed. Last version, 0.1.1, released in February 2015, can be still downloaded from the official website.

    CacoCloud Features

    1.  Web-Based

    CacoCloud VS Roundcube

     
  11. Mr. Mail icon

    Mr. Mail

     1 like
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    MrMail offers flexible Zimbra Hosting packages suitable for everyone, from single home user to a large company (SME) at superb prices and the best support in the industry.

    41 Mr. Mail alternatives

    License model

    Application types

    Platforms

    • Online

    Mr. Mail VS Roundcube

     
  12. Emails icon

    Emails

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    Simple, easy and secure mail server with a convenient and simple interface. Automatic certificate renewal through Let’s encrypt. Redirect, local storage. IMAP and SMTP.

    24 Emails alternatives

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Mac
    Emails screenshot 1

    Emails Features

    1.  IMAP Support
    2.  SMTP Support

    Emails VS Roundcube

     
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