Mattermost alternatives

Open source

Programs you can use instead of Mattermost. Free and open-source options come first; every download is from the publisher's official source.

• Element Element is an open-source messaging and collaboration client operating on the decentralized Matrix protocol. Shared platforms: Windows, macOS, Linux, Android WindowsmacOSLinuxAndroid
• Zulip Zulip is an open-source team collaboration and chat application developed by Kandra Labs, Inc. Shared platforms: Windows, macOS, Linux, Android WindowsmacOSLinuxAndroid
• Rocket.Chat Rocket.Chat is an open-source team communication platform licensed under the MIT license. Shared platforms: Windows, macOS, Linux WindowsmacOSLinux
• Slack Free version available Slack is a team communication and collaboration platform designed for workspaces and organizations. Shared platforms: Windows, macOS, Linux, Android WindowsmacOSLinuxAndroid

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