Mostlymatter AlternativesGroup Chat Apps & Instant Messengers like Mostlymatter

Mostlymatter is described as 'Fork of Mattermost meant to remove the users and messages limits. Mattermost open source platform for secure collaboration across the entire software development lifecycle' and is a Group Chat app in the social & communications category. There are nine alternatives to Mostlymatter for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Web-based apps. The best Mostlymatter alternative is Jitsi Meet, which is both free and Open Source. Other great apps like Mostlymatter are Slack, Mattermost, Zoom and Nextcloud Talk.

Mostlymatter iconMostlymatter
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Mostlymatter is a fork of Mattermost meant to remove the users and messages limits. Mattermost is an open source platform...

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Mostlymatter alternatives page was last updated Feb 12, 2025
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  1. Jitsi Meet icon

    Jitsi Meet

     263 likes
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    Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free.

    146 Jitsi Meet alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Apple Watch
    • F-Droid
    Jitsi Meet screenshot 1

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Security-focused

    Features

    1.  Browser-based
    2.  Video Conferencing
    3.  End-to-End Encryption
    4.  Video Calling
    5.  Screen Sharing
    6.  Ad-free
    7.  Encrypted Chat
    8.  Remote Work
    9.  No Tracking
    10.  Stream audio
    11.  Unlimited users
    12.  WebRTC

    Jitsi Meet VS Mostlymatter

     

    • Jitsi Meet is the most popular Web-based, Android, iPhone & iPad alternative to Mostlymatter.

    • Jitsi Meet is the most popular Open Source & free alternative to Mostlymatter.

    • Jitsi Meet is Free and Open SourceMostlymatter is also Free and Open Source
    • Jitsi Meet is Privacy focused and LightweightMostlymatter is not according to our users
  2. Slack icon

    Slack

     854 likes
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    Offers unified communication for teams with advanced real-time messaging, contextual features, versatile chat tools, and organized conversations in dedicated channels with integrated file sharing on Mac, Windows, Linux, and mobile platforms for enhanced productivity.

    222 Slack alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Electron
    • Software as a Service (SaaS)
    Slack screenshot 1

    Top Slack Features

    1.  Team Collaboration
    2.  Multi Channel
    3.  Extensible by Plugins/Extensions
    4.  Support for @mentions
    5.  Channels
    6.  Threaded Conversations
    7.  Ad-free
    8.  HIPAA Compliant
    9.  Reactions
    10.  Real time collaboration
    11. IFTTT icon  IFTTT Integration
    12.  VoiP Calls

    Slack VS Mostlymatter

     

    • Slack is the most popular Windows, Mac, Linux & SaaS alternative to Mostlymatter.

    • Slack is Freemium and ProprietaryMostlymatter is Free and Open Source
  4. Mattermost icon

    Mattermost

     249 likes
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    Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.

    128 Mattermost alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • JavaScript
    • Go (Programming Language)
    • Cloudron
    Mattermost screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  Team Collaboration
    2.  Extensible by Plugins/Extensions
    3.  Chat Bot
    4.  On-premises software
    5.  Multi Channel
    6.  Full-Text Search
    7.  Built-in viewer
    8.  Dark Mode
    9.  Real time collaboration
    10.  Support for @mentions
    11.  Support for MarkDown
    12.  End-to-End Encryption

    Mattermost VS Mostlymatter

     
    Comments about Mattermost as an Alternative to Mostlymatter
    c17s5qhu
    Positive Feb 12, 2025
    0

    It is the closest to Mattermost. Since it is a fork from the Mattermost

    Mostlymatter Icon
    Mattermost icon
    • Mattermost is Freemium and Open SourceMostlymatter is Free and Open Source
    • Mattermost is LightweightMostlymatter is not according to our users
  5. Zoom icon

    Zoom

     156 likes
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    Provides video conferencing with high-quality video and screen sharing, supporting up to 100 participants, real-time whiteboard collaboration, group messaging, and VoIP. Compatible across devices including smartphones and PCs, offering flexibility for remote meetings.

    233 Zoom alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Apple Car Play
    • Android Auto
    • Apple TV
    • Android TV
    Zoom screenshot 1

    Top Zoom Features

    1.  Video Conferencing
    2.  Screen Sharing
    3.  Video Calling
    4.  No registration required
    5.  Email invitations
    6.  Ad-free
    7.  Picture in Picture
    8.  Moderation
    9.  Voice Chat
    10.  Two-factor Authentication
    11.  Remote Work
    12.  Shared whiteboard

    Zoom VS Mostlymatter

     
  6. Nextcloud Talk icon

    Nextcloud Talk

     33 likes
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    Self-hosted communication platform with secure audio, video, chat, web conferencing, screensharing, advanced encryption, and metadata privacy, running on user-controlled servers, supporting web and mobile apps, and eliminating third-party data exposure.

    102 Nextcloud Talk alternatives

    License model

    • Free Personal • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Nextcloud
    • F-Droid
    • Flatpak
    • Chocolatey
    Nextcloud Talk screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Screen Sharing
    2.  End-to-End Encryption
    3.  Ad-free
    4.  Real time collaboration
    5.  No registration required
    6.  No Tracking
    7.  Dark Mode
    8. Nextcloud icon  Nextcloud integration

    Nextcloud Talk VS Mostlymatter

     
  7. Mirotalk icon

    Mirotalk

     16 likes
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    Powered by WebRTC, Real-time video call, chat room and screen sharing entirely browser based.

    62 Mirotalk alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • IT flagItaly
    • European Union flagEU

    Platforms

    • Online
    • Self-Hosted
    • Docker Hub
    • YunoHost
    Chat window

    Properties

    1.  Privacy focused

    Features

    1.  Screen Sharing
    2.  End-to-End Encryption
    3.  No registration required
    4.  Desktop Sharing
    5.  Dark Mode
    6.  Real time collaboration
    7.  VoiP Calls
    8.  No Tracking
    9.  Multiple Account support
    10.  Ad-free
    11.  Voice Chat
    12.  Peer-To-Peer

    Mirotalk VS Mostlymatter

     
  9. Microsoft Teams icon

    Microsoft Teams

     55 likes
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    A comprehensive collaboration platform within Office 365, providing centralized chat, file sharing, and HD video meetings. Accessible on multiple platforms, it offers enterprise-grade security and compliance, customizable notifications, and private to group chat sessions.

    242 Microsoft Teams alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft 365
    • Android Auto
    • Apple Car Play
    Microsoft Teams screenshot 1

    Top Microsoft Teams Features

    Features

    1.  Team Collaboration
    2. Microsoft 365 Copilot icon  Microsoft Office integration
    3. Microsoft SharePoint icon  Sharepoint integration
    4.  Planner
    5.  Real time collaboration
    6.  Calendar View
    7.  Reminders
    8.  Dark Mode
    9.  Live Captions Translation
    10.  VoiP Calls
    11. Azure DevOps icon  Azure DevOps integration
    12. Trello icon  Trello integration

    Microsoft Teams VS Mostlymatter

     
  10. Infomaniak kMeet icon

    Infomaniak kMeet

     19 likes
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    kMeet is an unlimited, free, Swiss solution for organising encrypted video-conferences.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • F-Droid
    Infomaniak kMeet screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Protected by Password
    2.  No registration required
    3.  Screen Sharing
    4.  Desktop Sharing
    5.  Two-factor Authentication
    6.  End-to-End Encryption
    7.  Ad-free
    8.  Dark Mode
    9.  No Tracking
    10.  VoiP Calls
    11.  Real time collaboration
    12.  Video Conferencing

    Infomaniak kMeet VS Mostlymatter

     
  11. Google Meet icon

    Google Meet

     21 likes
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    Google Meet is a team-focused videoconference app included with G Suite and G Suite for Education.

    99 Google Meet alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Workspace
    Google Meet screenshot 1

    Google Meet Features

    1.  Screen Sharing
    2.  Picture in Picture
    3.  VoiP Calls
    4.  Desktop Sharing
    5.  Video Conferencing
    6. Gmail icon  Gmail integration
    7.  Multiple languages
    8.  Team Messaging
    9.  Speech to text
    10. Google Calendar icon  Google Calendar integration

    Google Meet VS Mostlymatter

     
9 of 9 Mostlymatter alternatives