Roundcube AlternativesOnly Open Source apps categorised as WebMail Providers

Alternatives list

1. 

   

   Rainloop

    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

   Application types

   • WebMail Provider
   • Email Client

   Origin

   • Estonia
   • EU

   Alerts

   • Discontinued

   Platforms

   • Online
   • Self-Hosted
   • Nextcloud
   • JavaScript
   • PHP
   • Cloudron

   

   

   

   More about Rainloop  

   

   Is Rainloop a good alternative to Roundcube?

    

   |

   3comments

   28users say it's a good alternative

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   Comments about Rainloop as an Alternative to Roundcube

    

   mandrael

   Positive comment•Apr 27, 2020

   1

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

   Guest

   Positive comment•Sep 7, 2017

   3

   PHP based and customizable more than roundcube, more modern ui

   Review by a new / low-activity user.

   EgorSharin

   Negative comment•Feb 19, 2024

   1

   The old version (no longer maintained since 2022) is still open-source on GitHub.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

   

   

   • 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

    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

   Application types

   • Email Client
   • WebMail Provider

   Alerts

   • Discontinued

   Platforms

   • Linux
   • Online
   • Self-Hosted
   • OpenPGP

   

   

   More about Mailpile  

   

   Is Mailpile a good alternative to Roundcube?

    

   |

   3comments

   12users say it's a good alternative

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   Comments about Mailpile as an Alternative to Roundcube

    

   Guest

   Negative comment•Jun 24, 2024

   0

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

   Review by a new / low-activity user.

   Guest

   Negative comment•Jan 9, 2018

   1

   Mailpile needs to run on a computer

   Review by a new / low-activity user.

   Guest

   Negative comment•Jul 11, 2018

   -1

   Mailpile is single-user (personal) environment

   Review by a new / low-activity user.

   

   

   • 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
4. 

   

   SOGo

    30 likes

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

   SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.

   61 SOGo alternatives

   Cost / License

   • Freemium (Subscription)
   • Open Source

   Application type

   • WebMail Provider

   Origin

   • Canada

   Platforms

   • Linux
   • Online
   • Thunderbird
   • Cloudron

   

   

   

   More about SOGo  

   

   Is SOGo a good alternative to Roundcube?

    
5. 

   

   Horde

    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

   • WebMail Provider

   Alerts

   • Discontinued

   Platforms

   • Online
   • Self-Hosted

   

   

   More about Horde  

   

   Is Horde a good alternative to Roundcube?

    

   |

   8users say it's a good alternative
6. 

   

   OX App Suite

    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.

   20 OX App Suite alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • WebMail Provider
   • Mail Server

   Origin

   • Germany
   • EU

   Platforms

   • Linux
   • Online
   • Self-Hosted
   • Software as a Service (SaaS)

   

   

   

   +6

   

   More about OX App Suite  

   

   Is OX App Suite a good alternative to Roundcube?

    

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   • 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. NeutronMail

    8 likes

   Self-hosted server for the Proton Mail client.

   Cost / License

   • Free
   • Open Source

   Application type

   • WebMail Provider

   Alerts

   • Discontinued

   Platforms

   • Online
   • Self-Hosted

   

   Is NeutronMail a good alternative to Roundcube?

    
9. 

   

   Webmail Lite

    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

   • WebMail Provider

   Origin

   • United States

   Platforms

   • Online
   • Self-Hosted

   

   

   

   +2

   

   More about Webmail Lite  

   

   Is Webmail Lite a good alternative to Roundcube?

    
10. 

    

    Isotope Mail Client

     1 like

    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...).

    Cost / License

    • Free
    • Open Source

    Application types

    • WebMail Provider
    • Email Client

    Origin

    • Spain
    • EU

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Kubernetes
    • Docker
    • OpenShift

    

    

    

    +5

    

    More about Isotope Mail Client  

    

    Is Isotope Mail Client a good alternative to Roundcube?

     

    |

    13users say it's a good alternative

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    • 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
11. 

    

    Squirrelmail

     24 likes

    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.

    Cost / License

    • Free
    • Open Source

    Application type

    • WebMail Provider

    Platforms

    • Self-Hosted
    • PHP

    

    More about Squirrelmail  

    

    Is Squirrelmail a good alternative to Roundcube?

     
12. 

    

    Postaci

     1 like

    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...

    Cost / License

    • Free
    • Open Source

    Application type

    • WebMail Provider

    Alerts

    • Discontinued

    Platforms

    • Linux

    

    Is Postaci a good alternative to Roundcube?

     
13. 

    

    Nexmail

     2 likes

    NexMail is an open-source, modern webmail client designed for self-hosted email servers. Enjoy a clean, intuitive interface with powerful features for managing your emails efficiently.

    Cost / License

    • Free
    • Open Source

    Application types

    • WebMail Provider
    • Email Client

    Origin

    • Pakistan

    Platforms

    • Self-Hosted
    • PHP

    

    

    

    +8

    

    More about Nexmail  

    

    Is Nexmail a good alternative to Roundcube?

     
14. 

    

    NOCC

     4 likes

    NOCC is a webmail client written in PHP. It provides webmail access to IMAP and POP3 accounts.

    Cost / License

    • Free
    • Open Source

    Application type

    • WebMail Provider

    Platforms

    • Online

    

    More about NOCC  

    

    Is NOCC a good alternative to Roundcube?