Software Alternatives & Reviews


Web-based IMAP email client

Roundcube Alternatives

The best Roundcube alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. 82

    Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

  2. 71

    A fully fledged, free email server solution, an open source project (GPL v2).

    Open Source

  3. Visit website

    The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

    Visit website paid $19.5 / Monthly (Pro)

  4. 54

    An open source mailserver suite.

    Open Source

  5. 51

    RainLoop is a web based email client.

    Open Source

  6. 51

    Horde Groupware is a free, enterprise ready, browser based collaboration suite.

  7. 29

    Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

  8. 39

    SOGo is groupware server with a focus on scalability and open standards.

    Open Source

  9. 36

    Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

  10. 39

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

    Open Source

  11. 32

    Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

  12. 27

    Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

    Open Source

  13. 29

    Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

  14. 31

    Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

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