Share one window in Teams, Zoom or Meet, then hold Ctrl + Alt and click another. Your call sees it instantly.
Free
Open source, MIT
Windows 10 & 11
Installer or portable
No account
Nothing to sign up for
No telemetry
No network code at all
ShareSwitch opens a window that mirrors any other window, live. You share that one window once, and every switch after that happens inside it.
1
Share the ShareSwitch window
In your call, pick ShareSwitch from the window list. You do this once, at the start.
2
Hold
Ctrl
Alt
A violet frame follows your cursor and shows the window you’re about to send.
3
Your call sees the new window immediately. Nobody waits, and nobody asks if they can see it now.
Save the windows you present most, then jump straight to them from anywhere.
Ctrl
+
Alt
+ click
Mirror the window you click
Ctrl
+
Alt
+
Shift
+
1-9
Save the window under your cursor to a number. Click instead of a number to use the next free one.
Ctrl
+
Alt
+
1-9
Jump straight to that window
Saving turns the frame green and shows the number it’s stored under.
It’s a screen-sharing tool with a global hotkey. You should be sceptical of that, so here’s exactly what it does.
No network code at all
No telemetry, no analytics, no update checks. Nothing leaves your computer.
A minimal keyboard hook
Only modifiers, Escape, digits and arrows pass, and digits and arrows only while a modifier is held. Everything you type is discarded inside the hook.
Only the window you pick
Your desktop, other apps and system notifications never reach the call.
Open source, MIT
Every line is on GitHub. No admin rights needed, and the portable version needs no install at all.
Questions
That’s SmartScreen reacting to a new, unsigned app, not a detection of anything harmful. Click More info, then Run anyway, or build it from source if you’d rather verify it yourself. The installer scans clean on VirusTotal.
Anything that can share a single window: Teams, Zoom, Google Meet, Slack huddles, Discord, OBS. To them, ShareSwitch is just a normal window.
Not yet. The Windows feature used for mirroring doesn’t include it. Great for documents, designs and dashboards; less so for demonstrating precise clicks.
No. The mirror is drawn by the Windows compositor itself: no video encoding, no capture loop. It idles at essentially zero CPU.
Not today. macOS has no equivalent of the Windows feature this is built on, so it would be a full rebuild. If you’d use it, tell us on GitHub.
