How ScreenCaptureKit makes on-device privacy possible
A look at the Apple technology under ScreenVeil — and why it means nothing leaves your Mac.
ScreenVeil is built on ScreenCaptureKit, Apple's modern framework for capturing screen content. It lets an app compose exactly which windows and displays appear in a capture — cleanly, and with the system's blessing.
No injection, no hacks
Because ScreenCaptureKit is a first-party API, ScreenVeil doesn't need code injection, private APIs, or kernel extensions to filter your feed. That's better for stability, better for security, and the reason it keeps working across macOS updates.
Why it stays on-device
All of this composition happens locally, frame by frame, on your Mac. There's no reason to send anything to a server — so ScreenVeil doesn't. No frames, no text, no titles ever leave your machine.
Keep reading
How to Hide Slack During a Zoom Screen Share on Mac
Hide Slack from a Zoom screen share on Mac without closing it: share one window, use Focus, or keep Slack open and invisible with ScreenVeil.
How to hide apps when screen sharing on a Mac
Notifications, Slack, private tabs — how to keep them off the shared screen on Zoom, Meet, and Teams without closing everything you're working in.