Mattermost

Open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed. Hundreds of contributors. 14 languages. Secure, configurable, and scalable from teams to the enterprise

PRICING

Free tier available. Paid accounts start from $3.25 per user/per month (billed annually)

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Key Features

  • Workplace messaging with search and integrations
  • 1-1 and group messaging
  • Compliance reporting is available

Great for

  • Share files with team members
  • Advanced security is available, you can enable Multi-factor authentication and encrypted push notifications
  • Centrally manage thousands of users and hundreds of teams with advanced synchronization and automation of users and roles

Be aware that

  • Does not support video or phone calls from within the platform
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