How to mark Slack messages all as read
Navigate to the Channel List:

Right-Click on Each Channel or Direct Message:

Access the Context Menu:
Repeat for Each Channel:

Verify Messages are Marked as Read:

Conclusion:
Frequently Asked Questions:
Why is it important to mark messages as read in Slack?
Is there a quicker way to mark all messages as read in Slack on desktop?
Can these methods vary in different versions of Slack?
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About the author
Sanskar Tiwari is the founder of MagicSlides and IAG Tech. Over the past 5 years, he has shipped 24+ products and taught 100k+ students how to code. His work focuses on AI‑assisted creation and developer education.
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