Slack

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Slack is a cloud-based set of proprietary collaboration tools and services. It's meant for teams and workplaces, can be used across multiple devices and platforms.

Problems in the last 24 hours

The graph below depicts the number of Slack reports received over the last 24 hours by time of day. When the number of reports exceeds the baseline, represented by the red line, an outage is determined.

Slack Outage Chart 12/28/2025 11:20

At the moment, we haven't detected any problems at Slack. Are you experiencing issues or an outage? Leave a message in the comments section!

Most Reported Problems

The following are the most recent problems reported by Slack users through our website.

  1. App Crashing (43%)

    App Crashing (43%)

  2. Sign in (29%)

    Sign in (29%)

  3. Connection (29%)

    Connection (29%)

Live Outage Map

The most recent Slack outage reports came from the following cities:

Loading map, please wait...
City Problem Type Report Time
FranceCreil Connection
IndiaNew Delhi App Crashing
United StatesSalt Lake City Sign in
United StatesMiami App Crashing
United KingdomBath Sign in
IndiaNoida App Crashing
Map Full Outage Map

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

Beware of "support numbers" or "recovery" accounts that might be posted below. Make sure to report and downvote those comments. Avoid posting your personal information.

Slack Issues Reports

Latest outage, problems and issue reports in social media:

  • EllenxKate Ellen (@EllenxKate) reported

    @SlackHQ Not working

  • mattyigreene Matty 🌈 😷 (@mattyigreene) reported

    I used to be able to clear all unread messages on @SlackHQ with Shift + ESC. It's not working anymore. Ideas why?

  • HarvieDanger Harv Nagra (@HarvieDanger) reported

    @SlackHQ Hello! About once a week, my colleagues and I seem to have the Slack window disappear on our Macs (Intel or M1, running macOS 11.3) which requires a restart. Is this a known issue? Quitting / restarting the app doesn't sort it... only a complete restart of the computer.

  • _jordanperry Jordan Perry (@_jordanperry) reported

    @SlackHQ On a Mac. It was unresponsive earlier. Finally woke up long enough to gain access to the Help menu. So while resolved for me now, would still be helpful to know in the future!

  • dedward11 Deborah Edwards (@dedward11) reported

    @SlackHQ Good afternoon Slack peeps! We've had a change with notifications this week. We are no longer receiving our pop up or audible notifications when someone replies IN A THREAD that we are part of. We have made no changes to our settings. Can you help us out?

  • EricPeters0 Eric Peters (@EricPeters0) reported

    Does anyone know the fix for @SlackHQ showing ( 1 ) unread in your 'Threads' section no matter what you do because wow that's distracted me 19 times today already.

  • GodOfGrandeur Tajinder Gill (@GodOfGrandeur) reported

    @SlackHQ having a issue with unfollow thread missing in web and desktop app but has it in mobile. Any suggestions how I get back on all devices?

  • ProjectDavis Holly Davis (@ProjectDavis) reported

    Slack is showing one unread message in threads despite clearing all threads, help? cc @SlackHQ

  • NikGalatis Nick Galatis (@NikGalatis) reported

    @SlackHQ Ever since I connected external org channels and do a call with them, app will start strange behavior afterwards until I kill it. Other times after a screen share leaves blank windows floating. Other times language switcher doesn't work in the slack window. No high cpu or errors.

  • istrakhov Ivan (@istrakhov) reported

    @SlackHQ all of a sudden this afternoon names are being displayed in full even though I have it toggled off. Reset cache but no help. Thoughts?

  • Urgo Jason Urgo (@Urgo) reported

    @SlackHQ So.. does this mean the change will be reverted or at least added as an option for which style is used.. or is that just your customer service way of saying we hear you but get used to it?

  • meglio meglio (@meglio) reported

    @SlackHQ Please treat my tweet as a complete reproducible bug report (if you are willing to fix it). No need to duplicate same text over to an email.

  • lsmith Lukas Kahwe Smith (he/him) (@lsmith) reported

    @SlackHQ so resetting the cache fixed the issue .. but seemingly only temporarily. it is back now.

  • QTweetsToo Q (@QTweetsToo) reported

    Slack down? @SlackHQ

  • Derek3Di derek3Di (@Derek3Di) reported

    Does anyone else have issues with joining @SlackHQ channels? Maybe I’m just not understanding something, somehow I was able to join one but now I got no clue!

  • B1tSmurf Glenn Dufke (@B1tSmurf) reported

    @SlackHQ While the deprecation policy is to encourage upgrading the OS for security reasons - You've failed to account for the LTSB/LTSC versions of Win10 continues to receive updates. Likewise, a true native multi platform app would help a lot. #Delphi makes it easy doing so.

  • Phil_M57 Phil M. (@Phil_M57) reported

    @SlackHQ Why dit you remove the sidebar ? It was so useful, now we have to do multiple clicks to have an info. And now I have the help bar open and it can't be closed :(

  • B1tSmurf Glenn Dufke (@B1tSmurf) reported

    @SlackHQ While the deprecation policy is to encourage upgrading the OS for security reasons - You've failed to account for the LTSB/LTSC versions of Win10 continues to receive updates. Likewise, a true native multi platform client would help a lot. #Delphi makes it easy doing so

  • jeffgolenski Jeff Golenski (@jeffgolenski) reported

    Such a large part of my daily process revolves around @SlackHQ reminders, I feel like my entire existence would come crashing down if that feature stopped working. Hopefully this is my most embarrassing tweet of today.

  • EllenxKate Ellen (@EllenxKate) reported

    @SlackHQ clear all unread messages isn’t working!!! Help 😭

  • _jordanperry Jordan Perry (@_jordanperry) reported

    @SlackHQ is there an alternate way to clear the cache? For instances where Slack is in a cyclical state of unresponsiveness and unable to access the Help menu

  • waupsh John Waupsh (@waupsh) reported

    How has @SlackHQ incredibly terrible calling feature only gotten worse

  • rfischmann Rafael Fischmann (@rfischmann) reported

    @SlackHQ Just applied an update that showed up in Mac App Store, but the issue remains.

  • davidcryix David Price (@davidcryix) reported

    @EthanRasiel @SlackHQ I actually don't know what happened with this. Can't recall the user who was having the problem and cant find a matching ticket. I guess it must have went away though because it hasn't come up since?

  • kellytdesign Kelly Tomlinson Resman (@kellytdesign) reported

    @figmadesign @SlackHQ my integrations for notifications on files/comment tags seems to be broken. How can I fix?

  • meglio meglio (@meglio) reported

    @SlackHQ serious UX issue with Slack for MacOS: if samba directory is set to auto-mount in Finder, and if it is not available, Slack will freeze for 30+ seconds and show no window when that samba directory is not available. Resolves only after MacOS shows "can't connect".

  • papitopher Topher (@papitopher) reported

    @SlackHQ @dogchaser520 This doesn't seem to be working because i deleted 2 channels that get bot messages and it still says i've used 16K messages and locking messages in other channels which are way way under. Who do i contact for help with this?

  • freshyill illtron (@freshyill) reported

    @tomscocca @SlackHQ They’re just trying to [install a] help[er tool].

  • isfotis Fotis Papadogeorgopoulos (@isfotis) reported

    Hey @SlackHQ, is there a way to underline links on the app? I know that changing the colours can help, but I want to have the underline to spot them at a glance, and as a better default. Perhaps it could be a space-specific setting? #accessibility #a11y

  • Wrehble Wrehble (@Wrehble) reported

    Every time @salesforce goes down, I get 50 plus messages from everyone in the company on @SlackHQ since no one reads the post directly above theirs… I hate it here.