Slack (software)

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Slack Technologies Logo.svg
Original author(s)Stewart Butterfield, Eric Costello, Cal Henderson, and Serguei Mourachov[1]
Developer(s)Slack Technologies
Initial releaseAugust 2013; 13 years ago (2013-08)[2]
Written inElectron (C++, JavaScript, etc.)[3]
Operating systemMicrosoft Windows, macOS, Linux, iOS, Android, Windows Phone,[4] Commodore 64[5]
TypeCollaborative software[6]
LicenseProprietary
Websiteslack.com

Slack is an online messaging app with fancier features.[7] Stewart Butterfield helped create it. It was originally for a video game. But then they just made it a simple messaging app and dropped the video game idea.[8][9] "Slack" stands for "Searchable Log of All Conversation and Knowledge."[10][11]

Slack has a workspace - it's a shared place where a team uses Slack. People can join a workspace if they get an invitation or a special link. Slack uses channels, which are like chat rooms.[12] A channel can be public (anyone in the group can join) or private (only invited people can join).[13] People can also send direct messages to one person or to a small group. A group chat can later become a private channel.[14]

Slack can connect to many other apps, like Google Drive, Trello, Dropbox, and GitHub.[15] It can also connect to calendars and other services.[16]

Slack provides mobile apps for iOS and Android in addition to their web browser client and desktop clients for MacOS, Windows, and Linux (beta).[17][18]

Slack is a freemium product. This means people can use it for free, but some extra features cost money. [19]

Slack uses channels, which are like chat rooms.[20] A channel can be public (anyone in the group can join) or private (only invited people can join).[21] People can also send direct messages to one person or to a small group. A group chat can later become a private channel.[22]

All content, including files, conversations, and people, is searchable within Slack. Users can express their reactions in the form of emojis to any message.[23]

Slack can connect to many other apps, like Google Drive, Trello, Dropbox, and GitHub.[24] It can also connect to calendars and other services.[25] Slack provides mobile apps for iOS and Android in addition to their web browser client and desktop clients for Windows,[26] macOS, and Linux (beta).[27]

References

  1. ↑ Kumparak, Greg. Slack's Co-Founders Take Home The Crunchie For Founder Of The Year. TechCrunch.com (February 5, 2015). Retrieved October 13, 2018.
  2. ↑ Zax, David. Flickr Cofounders Launch Slack, An Email Killer. Retrieved October 13, 2018.
  3. ↑ Desktop Application Engineer. slack.com. Retrieved October 13, 2018.
  4. ↑ Slack. Slack apps for computers, phones & tablets. Retrieved October 13, 2018.
  5. ↑ Harris, Jeffrey. Slack client for Commodore 64 (November 27, 2016). Retrieved October 13, 2018.
  6. ↑ Crunchbase - Slack Technologies. Crunchbase. Retrieved October 13, 2018.
  7. ↑ Shares in workplace software phenom Slack soar 50% in first day of trading. CBS News. Retrieved 20 June 2019.
  8. ↑ Tam, Donna. Flickr founder plans to kill company e-mails with Slack. Retrieved October 13, 2018.
  9. ↑ Thomas, Owen. Die, Email, Die! A Flickr Cofounder Aims To Cut Us All Some Slack (August 14, 2013). Retrieved October 13, 2018.
  10. ↑ Kim, Eugene (September 27, 2016). "Slack, the red hot $3.8 billion startup, has a hidden meaning behind its name". UK Business Insider. https://www.businessinsider.com/where-did-slack-get-its-name-2016-9. Retrieved October 13, 2018. 
  11. ↑ What is Slack and who uses it
  12. ↑ Chaudhry, Aliya. How to set up a Slack account (in en-US). The Verge (2022-01-28). Retrieved 2025-09-16.
  13. ↑ John, Steven. How to join a Slack channel on desktop or mobile, whether it's public or private (in en-US). Business Insider. Retrieved 2025-09-16.
  14. ↑ Slack updated their privacy policy: Now your company can read ‘private’ messages (in en). NBC News (2018-04-05). Retrieved 2025-09-16.
  15. ↑ Flickr Co-Founder Stewart Butterfield Turns to Workplace Communication Tools With Slack (in en-US). AllThingsD. Retrieved 2025-09-16.
  16. ↑ Tepper, Fitz. Slack Integrates With Google Calendar To Add Events To Channels (in en-US). TechCrunch (2015-07-23). Retrieved 2025-09-16.
  17. ↑ How Slack brought its desktop app to the Windows Store (in en). ZDNET. Retrieved 2025-09-16.
  18. ↑ Warren, Tom. Slack launches dark mode for macOS, Windows, and Linux (in en-US). The Verge (2019-09-12). Retrieved 2025-09-16.
  19. ↑ Slack. slack.com. Retrieved 2025-09-12.
  20. ↑ Chaudhry, Aliya. How to set up a Slack account (in en-US). The Verge (2022-01-28). Retrieved 2025-09-12.
  21. ↑ John, Steven. How to join a Slack channel on desktop or mobile, whether it's public or private (in en-US). Business Insider. Retrieved 2025-09-12.
  22. ↑ Slack. Convert a channel to private or public (in en-US). Slack Help Center. Retrieved 2025-09-12.
  23. ↑ Crook, Jordan. Slack Adds Emoji Reactions 👍💥✨ (in en-US). TechCrunch (2015-07-09). Retrieved 2025-09-12.
  24. ↑ Flickr Co-Founder Stewart Butterfield Turns to Workplace Communication Tools With Slack (in en-US). AllThingsD. Retrieved 2025-09-12.
  25. ↑ Tepper, Fitz. Slack Integrates With Google Calendar To Add Events To Channels (in en-US). TechCrunch (2015-07-23). Retrieved 2025-09-12.
  26. ↑ How Slack brought its desktop app to the Windows Store (in en). ZDNET. Retrieved 2025-09-12.
  27. ↑ Warren, Tom. Slack launches dark mode for macOS, Windows, and Linux (in en-US). The Verge (2019-09-12). Retrieved 2025-09-12.

Other websites

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  • Ebook "How to Use Slack"
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