The Best Open Source Microsoft Teams AlternativesTop Group Chat & Video Calling Apps like Microsoft Teams

The best open source alternative to Microsoft Teams is Element. It's not free, so if you're looking for a free alternative, you could try Element or Jitsi Meet. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Teams and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft Teams are Jami, Wire, Mattermost and Element X.

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Microsoft Teams alternatives are mainly Group Chat Apps, but if you're looking for Video Calling Apps or Instant Messengers you can filter on that. Other popular filters include Open Source, Self-Hosted + Open Source, Linux, Self-Hosted 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 Microsoft Teams.
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Alternatives list

  1. Element icon

    Element

     774 likes

    Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.

    302 Element alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Matrix.org
    • Flathub
    • F-Droid
    • Cloudron
    • Snapcraft
    Video calls for desktop and mobile
     
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    4
    27
    Comments about Element as an Alternative to Microsoft Teams
    chtfn
    Positive
    1

    Element has come a long way, and is now a fully-featured group chat application, with spaces (to group several rooms), numerous bridges so people are not locked in one single tool, and great integrations.

    tutosfaciles48
    Positive
    4

    Riot.im have a lot of mods/plugins which allow us to have video calls, ldap/AD integration, ...

    Guest
    Positive
    1

    Clean and simple interface. Bridges is an extremely nice feature.

    Review by a new / low-activity user.
    3 of 4 comments
    Element icon
    Element icon

    • Most users think Element is a great Microsoft Teams alternative.

    • Element is Free Personal and Open SourceMicrosoft Teams is Freemium and Proprietary
    • Element is Privacy focused and LightweightMicrosoft Teams is not according to our users
  2. Jitsi Meet icon

    Jitsi Meet

     284 likes

    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.

    148 Jitsi Meet alternatives

    Cost / License

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Apple Watch
    • F-Droid
    Jitsi Meet screenshot 1
     
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    2
    9
    Comments about Jitsi Meet as an Alternative to Microsoft Teams
    Nicolas
    Positive
    0

    No account required, end-to-end encryption, open source... All good reasons to be happy with Jitsi

    Guest
    Positive
    1

    good software alternative to Meet

    Review by a new / low-activity user.
    Jitsi Meet icon
    Jitsi Meet icon

    • Most users think Jitsi Meet is a great Microsoft Teams alternative.

    • Jitsi Meet is Free and Open SourceMicrosoft Teams is Freemium and Proprietary
    • Jitsi Meet is Security-focused, Privacy focused and LightweightMicrosoft Teams is not according to our users
  4. Zulip icon

    Zulip

     266 likes

    Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.

    222 Zulip alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • Self-Hosted
    • F-Droid
    Zulip screenshot 1
     
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    9
    23
    Comments about Zulip as an Alternative to Microsoft Teams
    Top Positive Comment
    Geobomatic
    0

    Zulip approach instant messaging in an innovative way, a hybrid between pure IM and old fashioned forum. It helps keeping the messages organized and not jumble around many discussion in the same flow

    JonasF
    Positive
    0

    Superior to Teams in terms of performance and most importantly because of the Threading model, which allows asynchronous parallel collaboration on multiple issues.

    samia_
    Positive
    0

    A place within the channel where you can have conversations organized by topic.

    Review by a new / low-activity user.
    3 of 9 comments
    Zulip icon
    Zulip icon

    • Almost everyone thinks Zulip is a great Microsoft Teams alternative.

    • Zulip is Free Personal and Open SourceMicrosoft Teams is Freemium and Proprietary
    • Zulip is Privacy focusedMicrosoft Teams is not according to our users
  5. Jami icon

    Jami

     237 likes

    Jami (formerly GNU Ring, SFLphone) positions itself as a potential free Skype replacement

    160 Jami alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Jami video conference OS X
     
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    1
    Comments about Jami as an Alternative to Microsoft Teams
    Guest
    Positive
    0

    Works as long as there is a connection between the parties as peer-to-peer.

    Review by a new / low-activity user.
    Jami icon
    Jami icon
    • Jami is Free and Open SourceMicrosoft Teams is Freemium and Proprietary
    • Jami is Privacy focusedMicrosoft Teams is not according to our users
  6. Wire icon

    Wire

     313 likes

    Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

    282 Wire alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • Software as a Service (SaaS)
    • Flathub
    • Snapcraft
    Wire screenshot 1
     
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    6
  7. Mattermost icon

    Mattermost

     253 likes

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

    130 Mattermost alternatives

    Cost / License

    • Paid
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • JavaScript
    • Software as a Service (SaaS)
    • Go (Programming Language)
    • Cloudron
    Mattermost screenshot 1
     
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    2
    7
    Comments about Mattermost as an Alternative to Microsoft Teams
    Guest
    Positive
    1

    Mostly the same features, but self-hosted. Although less integrations in my knowledge

    Review by a new / low-activity user.
    Guest
    Positive
    1

    Easy to install, free of charge and self hosted.

    Review by a new / low-activity user.
    Mattermost icon
    Mattermost icon

    • Most users think Mattermost is a great Microsoft Teams alternative.

    • Mattermost is Paid and Open SourceMicrosoft Teams is Freemium and Proprietary
    • Mattermost is LightweightMicrosoft Teams is not according to our users
  9. Element X icon

    Element X

     41 likes

    It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.

    106 Element X alternatives

    Cost / License

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    Element X screenshot 1
     
  10. Rocket.Chat icon

    Rocket.Chat

     160 likes

    Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

    142 Rocket.Chat alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Cloudron
    Rocket.Chat screenshot 1
     
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    1
    Comments about Rocket.Chat as an Alternative to Microsoft Teams
    Guest
    Positive
    0

    Open source, very powerful. Can be hosted independently on own hardware but also as-a-service. Does the exact same without limiting the user to one service provider or client.

    Review by a new / low-activity user.
    Rocket.Chat icon
    Rocket.Chat icon
    • Rocket.Chat is Freemium and Open SourceMicrosoft Teams is Freemium and Proprietary
  11. Quiet Chat icon

    Quiet Chat

     19 likes

    Quiet is an alternative to team chat apps like Slack, Discord, and Element that does not require trusting a central server or running one's own. In Quiet, all data syncs directly between a team's devices over Tor with no server required.

    55 Quiet Chat alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Quiet Chat screenshot 1
     
  13. Mirotalk icon

    Mirotalk

     18 likes

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

    71 Mirotalk alternatives

    Cost / License

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Docker Hub
    • YunoHost
    • Cloudron
    Chat window
     
  14. Infomaniak kMeet icon

    Infomaniak kMeet

     23 likes

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

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • F-Droid
    Infomaniak kMeet screenshot 1
     
12 of 60 Microsoft Teams alternatives