Slack today launched dark mode for all desktop apps, including Mac, Windows, and Linux. This follows the company previously making dark mode available on iOS back in June.

slack dark
To find dark mode in Slack on Mac, click on your name in the left sidebar > Preferences > Themes. This will show you a quick preview of how everything will look, and then you can choose to switch to dark mode or stay in light mode.

The company has also added new themes specifically tailored for dark mode, all of which are also available today. There is no required update to see dark mode on Slack, but you'll need to restart the app to get it to appear.

Slack also confirmed that in the near future you will be able to set Slack to switch automatically between light and dark mode, based on your macOS settings. The company didn't provide a specific release date for this feature but said it will be available fairly soon.

Top Rated Comments

sharprichnorth Avatar
78 months ago
There's no "Themes" under Preferences. Latest version on Slack's site is 4.0.3, which was released August 28.

[edit] Moments after I posted that, Slack flashed (reloaded) and Themes appeared. Just have to wait, I guess. Still v4.0.3.

[doublepost=1568308078][/doublepost]
For such an integral app, their development has always felt unusually slow.
It's also got some usability issues. Largely the result of being a "fake" (Electron?) app, most likely.
Score: 4 Votes (Like | Disagree)
CheesePuff Avatar
78 months ago
Mac App Store shows updated 1w ago... no option for dark mode?! Whatever.

Edit: Ah, the web site now has it - yep. (slack.com) - not the Mac app.
No, it's the Mac app as well. You need to quit and relaunch if its been running.
Score: 2 Votes (Like | Disagree)
Paradoxally Avatar
78 months ago
For such an integral app, their development has always felt unusually slow.
Welcome to the joy of Electron-based apps. Just don't open Activity Monitor on the memory tab..
Score: 2 Votes (Like | Disagree)
Pakaku Avatar
78 months ago
I wish these dark modes would add some actual depth and organization... to me their layout just looks like a bunch of text with no boundaries or anything. And that's not getting into using anything besides pure black and white... at least Discord tried a decent dark theme attempt
Score: 2 Votes (Like | Disagree)
coolfactor Avatar
78 months ago
I was struggling to find dark mode even after reinstalling the app. If you're on Windows, this means you'll need to close the app and kill the task in Task Manager, then reopen.
The joys of Windows. :p
[doublepost=1568316226][/doublepost]
Welcome to the joy of Electron-based apps. Just don't open Activity Monitor on the memory tab..
Slack has worked hard to improve resource usage on the Mac lately, and I'm super happy with the progress that they have made. Interesting that the "Slack Helper" process takes up nearly 3x the memory as the Slack app itself. How is that helper helping me??? :p
Score: 2 Votes (Like | Disagree)
edgonzalez32 Avatar
78 months ago
Mac App Store shows updated 1w ago... no option for dark mode?! Whatever.

Edit: Ah, the web site now has it - yep. (slack.com) - not the Mac app.
It's in the app now too under preferences.
Score: 1 Votes (Like | Disagree)

Popular Stories

iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
xiaomi apple ad india

Apple and Samsung Push Back Against Xiaomi's Bold India Ads

Friday August 29, 2025 4:54 am PDT by
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging." Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
maxresdefault

The MacRumors Show: iPhone 17's 'Awe Dropping' Accessories

Friday August 29, 2025 8:12 am PDT by
Following the announcement of Apple's upcoming "Awe dropping" event, on this week's episode of The MacRumors Show we talk through all of the new accessories rumored to debut alongside the iPhone 17 lineup. Subscribe to The MacRumors Show YouTube channel for more videos We take a closer look at Apple's invite for "Awe dropping;" the design could hint at the iPhone 17's new thermal system with ...