Slack AlternativesOnly Open Source apps categorised as Video Calling Apps - Page 2

The best open source Video Calling alternative to Slack is Element. If that doesn't suit you, our users have ranked more than 100 alternatives to Slack and 18 are open source Video Calling Apps so hopefully you can find a suitable replacement. Other interesting open source Video Calling App alternatives to Slack are Rocket.Chat, Wire, Threema and Element X.

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Slack alternatives are mainly Instant Messengers but may also be Group Chat Apps or Video Calling Apps.  Other popular filters includes Self-Hosted + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Slack.
Slack iconSlack
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  • ...

Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.

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Slack alternatives page was last updated Sep 18, 2024
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  1. Prav icon
    Prav icon

    Prav

     3 likes
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    A user-friendly messenger for everyone with a focus on privacy and freedom.

    57 Prav alternatives
    Prav screenshot 1
    Prav screenshot 2
    +5
    Prav screenshot 3

    License model

    • Free • Open Source

    Application types

    Platforms

    • Android
    • F-Droid

    Properties

    1.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  Audio Calling
    3.  Text messaging
    4.  Supports XMPP
    5.  Xmpp
    Prav iconSlack Icon

    Prav VS Slack

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  2. Nerimity icon
    Nerimity icon

    Nerimity

     5 likes
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    Nerimity is a modern and sleek chat app which includes features like free animated avatars & emojis, creating communities and posts, finding new communities to join, changing your username and tag for free and more!

    22 Nerimity alternatives
    Profile Interface

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    • Online
    • Android
    Messages View
    Server Settings

    Properties

    1.  Ad-free
    2.  Privacy focused
    3.  No Tracking
    4.  Lightweight

    Features

    1.  Support for @mentions
    2.  VoiP Calls
    3.  Screen Sharing
    4.  Dark Mode
    5.  Cloud Sync
    Nerimity iconSlack Icon

    Nerimity VS Slack

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  4. Kahla icon
    Kahla icon

    Kahla

     3 likes
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    Kahla is a free and open-source, cross-platform business messaging tool that supports end-to-end encrypted message communication and automatic destruction of messages.

    16 Kahla alternatives
    Kahla screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Chrome OS
    • Android Tablet
    • Self-Hosted
    Kahla iconSlack Icon

    Kahla VS Slack

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  5. Librem Chat icon
    Librem Chat icon

    Librem Chat

     8 likes
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    End-to-end encrypted chat, VOIP, and video calling used by millions of people.

    172 Librem Chat alternatives
    Librem Chat screenshot 1
    Librem Chat screenshot 2
    +1
    Librem Chat screenshot 3

    License model

    • Free • Open Source

    Application types

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid

    Properties

    1.  Decentralized
    2.  Ad-free

    Features

    1.  VoiP Calls
    2.  End-to-End Encryption
    Discontinued

    App hasn't been updated on Play Store since 2020.

    Librem Chat iconSlack Icon

    Librem Chat VS Slack

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  6. Databag icon
    Databag icon

    Databag

     2 likes
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    A tiny self-hosted federated messenger for the decentralized web.

    8 Databag alternatives
    Browser Screenshot

    License model

    • Free • Open Source

    Application types

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    Mobile Screenshot

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Ad-free
    4.  Decentralized
    5.  No Tracking

    Features

    1.  End-to-End Encryption
    2.  AES-256 Encryption
    3.  VoiP Calls
    4.  Federated
    Databag iconSlack Icon

    Databag VS Slack

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  7. monocles chat icon
    monocles chat icon

    monocles chat

     2 likes
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    monocles chat is a fork of blabber.im and Conversations with some changes, to improve usability.

    46 monocles chat alternatives
    monocles chat screenshot 1
    monocles chat screenshot 2
    +5
    monocles chat screenshot 3

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Online
    • Android
    • F-Droid

    Properties

    1.  Decentralized
    2.  Privacy focused
    3.  Ad-free
    4.  No Tracking

    Features

    1.  Dark Mode
    2.  End-to-End Encryption
    3.  VoiP Calls
    4.  Voice Chat
    monocles chat iconSlack Icon

    monocles chat VS Slack

    Is monocles chat a good alternative to Slack?
     
  9. Videolify icon
    Videolify icon

    Videolify

     4 likes
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    Start your next video call with a single click. No download, plug-in or login required. Just get straight to talking, messaging and sharing your screen.

    128 Videolify alternatives
    Videolify screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    • Microsoft Edge
    • Internet Explorer
    • Google Chrome
    • Opera
    • Brave
    • Firefox

    Videolify Features

    1.  WebRTC
    2.  Video Conferencing
    3.  Peer-To-Peer
    Videolify iconSlack Icon

    Videolify VS Slack

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