All your team communication in one place. A new way to get more done, spend less time in meetings, and reduce email. That's Slack.

  • Real time messaging and file sharing for one-to-one and group conversations
  • Powerful search and archiving, so you can find information easily
  • Hundreds of integrations with apps and services including Dropbox, Asana, Google Drive, Twitter, Zendesk and more
  • Instantly syncs across all devices
  • Configurable notifications for desktop, mobile, and email
  • Scientifically proven (or at least rumored) to make your working life simpler, more pleasant, and more productive

    Slack is available for free for as long as you want, with upgradeable plans for increased membership, extended message history, unlimited integrations, file storage and customizable data retention policies.

    "There are two types of people in the world: those who have never heard of Slack, and those who can't imagine life without it."

    The Guardian

    "Can't praise it enough. Slack transformed the way we work together at The New York Times."

    Michael Villasenor, Creative Director, The New York Times

    Find out what our customers are saying at

  • What's New
  • Fixed: In our last release we thought we'd eradicated all the problems plaguing the sign-in process, but it seems we missed a few. Good news, everyone, the plague has been eradicated. Again. Probably.
  • Fixed: An unfortunate state of affairs in which some of your teams might be forgotten by the app after a crash. The affair is over and now, as is fair, we remember.
  • Fixed: There was an understandable backlash to the backslash that attached itself to the front of single or double quotes when replying to notifications, so we took that slapdash backslash and burned it like the bug it was.

  • Slack (com.tinyspeck.slackmacgap) is a Mac software application that has been discovered and submitted by users of The latest version that our users have reported running on their systems is Slack 3512.

    Operating System: Mac

    Minimum OS version: 10.9