Slack

Slack gives your team the power and alignment you need to do your best work.

Snippet from Wikipedia: Slack (software)

Slack is a messaging program designed specifically for the workplace. Developed by American software company Slack Technologies, now owned by Salesforce, Slack offers many IRC-style features, including persistent chat rooms (channels) organized by topic, private groups, and direct messaging.

See similar:

  • Mattermost
  • Microsoft Teams
  • Atlassian HipChat
  • Facebook workplace
  • Stride