Slack Alternatives

Slack is described as 'Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms' and is a leading Group Chat app in the social & communications category. There are more than 100 alternatives to Slack for a variety of platforms, including Web-based, Android, iPhone, Windows and Mac apps. The best Slack alternative is Element. It's not free, so if you're looking for a free alternative, you could try Element or Zulip. Other great apps like Slack are Rocket.Chat, Discord, Matrix and Wire.

filter to find the best alternatives

Slack alternatives are mainly Group Chat Apps, but if you're looking for Team Collaboration Tools or Video Calling Apps you can filter on that. Other popular filters include Open Source, Self-Hosted, Self-Hosted + Open Source and Free. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Slack.
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Alternatives list

  1. Struct icon

    Struct

     6 likes
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    2x your productivity with Struct, a brand-new real-time chat platform designed from the ground up around threads, feeds and AI.

    Cost / License

    • Subscription
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Slack
    Struct screenshot 1
     
  2. Flotilla Chat icon

    Flotilla Chat

     6 likes
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    Experience a new way to connect with your people online. Join an existing community space or launch your very own branded platform tailored to your audience.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • iPhone
    • Android
    • Self-Hosted
    Customize your space, set access controls, and announce updates.
    Keep in touch with group chats — invite friends, report spam, and extend the experience.
    Post a thread for a more in-depth discussion; cross post to chat rooms.
     
  4. Strafe Chat icon

    Strafe Chat

     6 likes
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    StrafeChat is a web application focused on no censorship. We believe that people with any belief, opinion, or view should be able to communicate with each other freely.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    A channel in strafe chat
     
  5. Ad
    Screenshot
    Infomaniak kChat icon
    Infomaniak kChat

    kChat is a secure instant messaging for businesses, which makes it possible to discuss matters live and organise projects.

    https://www.infomaniak.com
    Learn More
  6. Whaller icon

    Whaller

     56 likes
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    Create your own free and unlimited private social networks.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Each Whaller network begins with a "sphere" (independent discussion space) where members can communicate and collaborate in complete security. Spheres include a variety of tools: messages, video conferencing, chat, document storage & co-editing, shared calendar, task Kanban, etc.
     
  7. Ryver icon

    Ryver

     7 likes
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    Ryver provides all of your team communications in one place: chats, posts, and files. Invite as many team members and guests as you need.

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    Ryver screenshot 1
     
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  8. Microsoft Viva Engage icon

    Microsoft Viva Engage

     22 likes
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    Internal social networking platform for organizations, enabling secure discussions, community building, events, polls, expert connections, analytics, and integration with Microsoft 365 tools to support engagement and workplace knowledge-sharing.

    87 Microsoft Viva Engage alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    Microsoft Viva Engage screenshot 1
    Microsoft Viva Engage screenshot 2
    Microsoft Viva Engage screenshot 3
     
  10. Stork icon

    Stork

     1 like
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    Your team's workspace that records & transcribes meetings automatically. Stork is a voice and video messenger with a powerful screen recording for asynchronous presentations. Fewer meetings & no missed meetings. PLAY IT BACK IN STORK.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Software as a Service (SaaS)
    Stork screenshot 1
     
  12. Nerimity icon

    Nerimity

     10 likes
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    Nerimity is an open-source, community-first chat platform built to deliver an elegant, powerful, and feature-rich experience.

    27 Nerimity alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Android Tablet
    • Self-Hosted
    Profile Interface [PC - 2025]
     
  13. Semaphor icon

    Semaphor

     13 likes
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    Zero Knowledge, end-to-end encrypted collaboration tool for teams and businesses. Reviewable source code. Python wrapper for bots & integrations. Encryption white paper. Native offline mode. Faster file-sharing. Built for enterprise.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    Semaphor screenshot 1
     
  14. Conduit Chat Server icon

    Conduit Chat Server

     7 likes
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    Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.

    243 Conduit Chat Server alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Raspberry Pi
    • Linux
    • Debian
    • Nix Package Manager
    • Docker
    • Docker Hub
    Conduit Chat Server screenshot 1
     
  15. Samepage icon

    Samepage

     85 likes
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    Samepage facilitates communication, project management, meetings, online collaboration and more by combining chat, video calling, screen sharing, task management, file sharing, and real-time document collaboration in a single collaborative workspace.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Software as a Service (SaaS)
    Collaborate in real-time on feature-rich pages. Your conversation is always in the right context thanks to built in chat. Assign task and create events in the built-in agenda.
     
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