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Grommunio

Grommunio is an open-source, self-hosted alternative to Discord. It provides text, voice, and video chat in a modern interface with channels and servers. Useful for gaming communities or private communications.

What is Grommunio?

Grommunio is an open-source, self-hosted team chat application similar to Discord. It allows users to create servers and discussion channels for real-time communication via text, voice, and video.

Some key features of Grommunio include:

  • Modern and intuitive user interface
  • Public and private text channels with threaded conversations
  • Voice chat rooms with noise suppression
  • Video calling and screen sharing
  • Custom emojis and GIF reactions
  • User roles and permissions
  • Bots and 3rd party integrations
  • Cross-platform support

As an open-source project, Grommunio places a strong emphasis on privacy and security. All data is kept on the user's own server rather than a third-party cloud. This makes it a great option for gaming groups, private networks, or companies looking for an internal chat platform.

The self-hosted nature does mean Grommunio requires more technical skill to set up than commercial services. But for those able to run their own server, it provides a free alternative without monthly fees or usage limits.

The Best Grommunio Alternatives

Top Apps like Grommunio

Microsoft Exchange Server, Zimbra Collaboration Suite, Kerio Connect, Nextcloud Hub, Kopano, OpenChange, IceWarp, EGroupware are some alternatives to Grommunio.

Microsoft Exchange Server

Microsoft Exchange Server is an email, contacts, calendar, and tasks application server developed by Microsoft. It is part of the Microsoft Servers line of server products and runs on Windows Server operating systems.Exchange Server provides enterprises with:Business class email with support for large mailboxes, message tracking, and legal...

Zimbra Collaboration Suite

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Kerio Connect

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Nextcloud Hub

Nextcloud Hub is an open-source, self-hosted content collaboration platform that provides organizations the ability to have on-premises alternatives to things like Dropbox, Office 365, or G Suite. It includes powerful online file sync & share capabilities, along with integrated online document editing, secure chat & messaging, calendar/contacts management, and more.Some key...

Kopano

Kopano is an open-source, on-premise groupware and collaboration suite developed primarily in the Netherlands. It originally started as an alternative to Microsoft Exchange Server and Outlook but has expanded to support most major desktop and mobile platforms.Kopano provides core productivity features including:Email with support for IMAP, POP3, SMTP...

OpenChange

OpenChange is an open source server software that aims to provide seamless compatibility with Microsoft Exchange servers and clients. Developed by Julien Kerihuel, OpenChange allows organizations to operate Linux-based mail and groupware servers while supporting Outlook clients and other Microsoft collaboration tools.At its core, OpenChange attempts to fully mimic...

IceWarp

IceWarp is a suite of email and collaboration tools developed by IceWarp Ltd. that organizations can host on their own servers and infrastructure. It provides a range of capabilities including:Email with webmail, POP3, IMAP, mobile sync, spam filteringShared calendars, contacts, tasksTeam chat and instant messagingFile storage, sharing, and synchronizationDocument...

EGroupware

EGroupware is an open-source collaborative software that provides a suite of tools for team communication, collaboration, and productivity. It offers a variety of modules including:Contacts - For managing contact lists and address booksCalendar - A shared calendar with scheduling and event management toolsEmail - A group email tool with...