Minimum requirements for using Slack

Curious about what the technical requirements are to run Slack? We've put together some helpful information about our supported browsers and operating systems (OS), so read on to learn more.

Download the Slack app for your desktop from✨

Desktop apps

Coming soon: Starting on March 15, 2019, we are changing the minimum OS requirement to run the Slack app on Mac to OS X 10.10. For more, see Apple's guide to upgrading.

Operating System Requirements
MacOS OS X 10.9 or above
Windows Windows 7 or above
Linux Fedora 26 or above
Ubuntu LTS releases 16.04 or above
Red Hat Enterprise Linux 7.0 or above

Mobile apps

Operating System Requirements
iOS iOS 10.0 or above
Android Android 4.4 or above
Windows Phone* Windows Phone 8.0 or above

* We're no longer updating the Slack app for Windows Phone as of June 14, 2018.

Web browsers

Connect to Slack from the web on your desktop anytime at — just make sure you're using one of our supported browsers. 

Coming soon: Starting on March 15, 2019, we are changing the minimum browser requirements needed to run Slack. Please make sure your browser is up to date.


Requirements (Current)

Requirements (March 15, 2019)


Version 51 and newer

Version 66 and above


Version 47 and newer, plus version 45 (ESR)

Version 60 and above


9 and newer

10.1 and above

Microsoft Edge

Version 31 and newer

Version 41 and above

Internet Explorer


No longer supported

Unsupported browsers and OS

To focus on delivering the best possible experience in Slack, it is necessary to keep the list of supported browsers and operating systems short.

When a browser is no longer supported, we stop fixing pesky bugs and issues. For a customer, that could be a terrible Slack experience! We do our best to avoid that scenario by blocking unsupported browsers from accessing Slack. 

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