Easy Tech TutsHow to Share Screen in Slack Huddles
By Impran M N
Slack huddles make it easy to jump on a quick audio call without leaving your workspace, and screen sharing turns that call into a live design review or presentation. This guide covers how to launch a huddle, share either your entire desktop or a single application window, and use the drawing tool to point things out in real time. It also touches on the security prompts you'll need to approve on Mac or Windows before sharing works.
01Start or join a huddle
Open a channel or direct message and click the huddle toggle to start an audio call with your team before sharing anything.
02Click the screen share icon in the huddle controls
Once inside the huddle, the call control bar includes a dedicated screen share button that opens your sharing options.
03Choose between your full desktop or a single window
Pick whether to broadcast everything on your screen or isolate one application or browser tab, which is useful for keeping other private windows hidden.
04Approve your operating system's permission prompt
Mac and Windows both require you to grant screen recording permissions the first time you share, so confirm the system prompt to keep the stream running.
05Use the drawing tool to annotate what you're sharing
A pencil icon on the shared screen border lets you sketch directly over what's being shown, which is handy for pointing out specific details during a review.
06Stop sharing when you're finished
Click the stop sharing button in the huddle bar to instantly end the video stream while keeping the audio huddle active.
Frequently asked questions
Can I share just one browser tab instead of my whole screen?
Yes, when you start sharing you can choose to isolate a specific application window or browser tab rather than broadcasting your entire desktop.
Why isn't screen sharing working on my Mac?
Mac requires you to explicitly grant screen recording permission in system settings the first time you share; check that prompt if the stream doesn't start.
Can someone else share their screen at the same time as me?
Slack huddles support dual screen sharing so a collaborator can cast a side-by-side comparison window alongside your own.
Does sharing my screen also notify the channel?
No, huddles run separately from the main channel feed, though you can drop a message or file into the thread while the huddle is active.
Watch the full walkthrough
The same steps, demonstrated on screen from start to finish.
