Share Part of Your Screen in Microsoft Teams on Mac
No Teams plugin required. Share the RegionMirror window using Teams' normal window-sharing feature.RegionMirror lets you share a selected portion of your Mac screen in Microsoft Teams by mirroring that area into a normal shareable window.
Free 7-day trial · $19.99 one-time purchase · macOS 13.5+
Full-screen sharing in Teams can be hard to read
Sharing your full screen in Microsoft Teams can be awkward on an ultrawide monitor. Viewers may see a tiny version of your entire desktop, making text, code, dashboards, and spreadsheets hard to read.
- Full-screen sharing can make everything too small
- Window sharing becomes a hassle when sharing more than one app
- Changing display resolution disrupts your workflow
- Resizing apps before every call wastes time
- Private desktop areas may be visible
Share a selected region in Teams instead
RegionMirror creates a separate Mac window that mirrors only the screen region you select. In Microsoft Teams, share the RegionMirror window instead of your whole display — a focused way to share part of your screen, a selected region, or a specific area of your Mac.
Three steps to sharing part of your screen in Teams
Select the part of your Mac screen you want to show
Drag out the exact area you want your Teams meeting to see.
RegionMirror mirrors that selected portion into its own window
The selection becomes a normal macOS window you can move or resize any time.
Share the RegionMirror window in Microsoft Teams
In Teams, choose window sharing and pick the RegionMirror window.
Ready to try it? Download RegionMirror and share a focused view in your next Teams call.
Download Free on the Mac App StoreBuilt for the calls you run in Teams
Code reviews
Walk through a diff or pull request at a readable size.
Sprint demos
Show working software clearly to your team and stakeholders.
Dashboard walkthroughs
Present analytics and reports without shrinking every detail.
Spreadsheet reviews
Keep rows and columns legible for every attendee.
Product demos
Present a focused, professional view every time.
Client presentations
Show clients exactly what matters, nothing else.
Remote support calls
Show a teammate or customer exactly the area they need to see.
Ultrawide monitor screen sharing
Share a readable region instead of a scaled-down ultrawide display.
Microsoft Teams, and every other meeting app
No meeting plugin required. Share the RegionMirror window using Teams' normal window-sharing feature.
Microsoft Teams
Share the RegionMirror window using Teams' normal window-sharing feature.
Slack
Also works with Slack's normal screen-sharing controls.
Webex
Also works with Webex's normal window-sharing feature.
Google Meet
Share the RegionMirror window like any other app window.
Discord
Share the RegionMirror window like any other app window.
And more
Any other app that supports window sharing works the same way.
See it work in Teams
Use Teams' normal window-sharing feature to share the RegionMirror window instead of your full display.
Share a focused view in your next Teams call.
Select a region, share the window, and keep the rest of your desktop to yourself.
Download Free on the Mac App StoreFree 7-day trial · $19.99 one-time purchase · macOS 13.5+
Questions, answered.
Can Microsoft Teams share only part of my screen?
Microsoft Teams can share your full screen or an app window. RegionMirror gives you a separate Mac window that mirrors the part of your screen you choose, so you can share that selected portion in Teams.
How do I share a portion of my screen in Teams on Mac?
Use RegionMirror to select the screen region you want to show, then share the RegionMirror window in Microsoft Teams.
Does RegionMirror require a Teams plugin?
No. RegionMirror works with Teams' normal window-sharing feature.
Is this useful for ultrawide monitors?
Yes. RegionMirror is especially useful when sharing from 34", 38", 49", or other ultrawide displays where full-screen sharing can make everything look too small.
Can I still use my full monitor while sharing?
Yes. RegionMirror lets you keep your normal monitor layout while sharing only the selected region in the RegionMirror window.
Does RegionMirror work with other meeting apps too?
Yes. RegionMirror also works with other apps that support window sharing, including Slack, Webex, Google Meet, Discord, and more.