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  • Slack is a messaging app for teamsĀ that is on a mission to make your working lifeĀ simpler, more pleasant, and more productive.


  • is an open source, self-hosted Slack-alternativeĀ Mattermost is modern communication behind your firewall.

    As an alternative to proprietary SaaS messaging, Mattermost brings all your team communication into one place, making it searchable and accessible anywhere.

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