Keep private work off your screen share & recording

Open Hushglass, choose the window you want protected, and share your entire screen: viewers get an opaque privacy screen where that window is, while it stays visible and usable in front of you. Hushglass is a Windows app that protects a chosen window from screen-share viewers only. Windows has no built-in setting that does this, and minimising the window or moving it to another desktop takes it away from you as well.

On a supported capture path, viewers see an opaque privacy screen where the protected window would be. It is not a blur of your content — there is nothing in it to read.

Yes. The real window stays visible and usable on your own desktop while Hushglass changes what the supported capture receives.

Minimising, closing or moving a window to another virtual desktop hides it from you too, so you cannot read the thing you are trying to keep private. Hushglass changes only what the capture receives: the window stays on your screen, in front of you, fully usable, while viewers get an opaque privacy screen. Sharing a single window instead of your entire screen works as well, but only while the private window is not the one you are sharing.

Share your entire screen. If you share the protected window itself as a single window, Windows sends that window straight to viewers and nothing can get in between. Sharing a different single window is safe.

Single-window shares are not protected: share the protected window itself and Windows sends that window straight to viewers. Task View, Alt-Tab and taskbar previews leak, because Windows draws those thumbnails and no application can change what they show. Notification pop-ups are their own windows, outside the area Hushglass covers. Hardware capture still sees everything, so an HDMI capture card, a phone camera or a very old capture path reads the screen itself. And protection applies to whole windows only: there is no way to cover one region inside a window and leave the rest visible.

Ctrl+Shift+Q protects or unprotects the window you are working in, from any app, even when Hushglass is sitting in the tray.

Hushglass makes a sound and shows a warning notification the moment a protection ends without you asking for it, so silence always means you are still covered.

Google Meet, Zoom, Microsoft Teams, OBS Studio, ShareX, Clipchamp, Windows. Each one is verified on the receiving end of a live screen share, against what the audience actually gets, rather than on the machine doing the sharing. Two paths have not been checked and are worth knowing about: Zoom's legacy capture mode, which is an option some administrators still turn on; and Microsoft Teams running in a browser tab instead of the desktop app. An app is named here only once it passes that same verification.

Windows 10 version 2004 or later. Hushglass relies on a Windows capture-exclusion feature that does not exist before that release, and it says so rather than running badly.

Yes, for the installer, and there is a route without it: Hushglass is on the Microsoft Store, free, and a Store install is signed by Microsoft, so neither your browser nor Windows warns you. If you already have the installer, the prompt reflects how many machines have run that particular file, not whether it is harmful. Choose More info, then Run anyway. One case is different: if Windows Defender or another scanner names a specific threat rather than an unknown publisher, stop and email hello@hushglass.com before continuing. A signing certificate for the installer is planned.

Free protects one window at a time. Pro removes the limit and protects new windows from an already-protected app on its own.

In a plain text file on your own PC that you can open and read. There is no hidden database, no background service, and no driver.

Two things, and only two: a once-a-day check for a newer version, and a license check if you buy Pro. Nothing about the windows you protect, not their names and not their contents, is ever sent anywhere.

No. There are no accounts. Free needs nothing at all, and Pro is a license key you paste into the app.