Slack AlternativesOnly Open Source apps categorised as Video Calling Apps - Page 3

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.

More about Slack
More about Slack
Slack alternatives page was last updated Sep 18, 2024
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  1. PrivMX Fusion icon
    PrivMX Fusion icon

    PrivMX Fusion

     2 likes
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    PrivMX Fusion is safe and easy collaboration software for all kinds of teams, with virtual workspace protected by end-to-end encryption. Each team uses desktop/laptop client software and its own (zero-knowledge) PrivMX Team Server.

    103 PrivMX Fusion alternatives
    Get a multi-window view and use PrivMX pocket - a companion app available for IOS and Android.

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Software as a Service (SaaS)
    Manage tasks with kanban boards, to-do list and customisable task views. Track progress.
    Chat with your team, discuss tasks and organise video conferences - in thematic Sections or ad hoc groups.
    +9
    Use built-in editor to create encrypted, interactive text notes, mind maps and spreadsheets, integrated with Tasks and other documents.

    Properties

    1.  No Tracking
    2.  Decentralized

    Features

    1.  End-to-End Encryption
    2.  Kanban Board
    3.  AES-256 Encryption
    4.  VoiP Calls
    5.  Block Trackers
    6.  Two-factor Authentication
    7.  Team work
    8.  Task Scheduling
    9.  Task Tracking
    10.  Share screenshots
    11.  List management
    PrivMX Fusion iconSlack Icon

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  2. STAGE by vr-on icon
    STAGE by vr-on icon

    STAGE by vr-on

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    STAGE Cloud enables Unreal and Unity Enterprise professionals to instantly create, deploy and use their multi-user VR applications. STAGE Cloud requires only 3 simple steps to roll out multi-user VR applications. Further details: www.vr-on.cloud.

    27 STAGE by vr-on alternatives
    Use with HMD or Desktop PC

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Windows
    • HTC Vive
    • Unity
    • Software as a Service (SaaS)
    • Oculus Rift
    Meeting-Room
    Tutorial Scene

    STAGE by vr-on Features

    1.  Real time collaboration
    2.  Screen Sharing
    3.  VoiP Calls
    4.  End-to-End Encryption
    5.  Unreal Engine Integration
    6.  Multiuser mode support
    7.  Interactive Whiteboard
    8.  Group Voice Chat
    9.  Video Conferencing
    STAGE by vr-on iconSlack Icon

    STAGE by vr-on VS Slack

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  4. Modular.im icon
    Modular.im icon

    Modular.im

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    Awesome hosting for Matrix chat and integrations - built on the Matrix open ecosystem for secure, decentralised communication, by the creators of Matrix.

    11 Modular.im alternatives

    License model

    Application types

    Platforms

    • Online
    • Self-Hosted

    Properties

    1.  Decentralized

    Features

    1.  VoiP Calls
    2.  Support for MarkDown
    3.  DRM Free
    4.  File Sending
    5.  Custom widgets
    6.  IRC
    7.  Server side history
    8.  Matrix Protocol
    Modular.im iconSlack Icon

    Modular.im VS Slack

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  5. Pensil icon
    Pensil icon

    Pensil

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    Pensil is a community building platform that brings together members, engaging discussion & live events for brands and creators.

    27 Pensil alternatives
    Build personalised community experience for your members on web, android & iOS.

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Google Chrome
    • Software as a Service (SaaS)
    Create multiple groups, change themes to match your branding.
    Create group chat, a great alternative to discord or slack.
    +2
    Inbuilt video call to host community events or discussion or even conduct classes

    Properties

    1.  Privacy focused
    2.  No registration required
    3.  Lightweight

    Features

    1.  Cloud Sync
    2.  End-to-End Encryption
    3.  Real time collaboration
    4.  Dark Mode
    5.  Sync with Google Calendar
    6.  Support for MarkDown
    7.  Multiple Account support
    8.  Online community platform
    9.  Live calls
    10.  Webinar
    11.  White-labeled
    Pensil iconSlack Icon

    Pensil VS Slack

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