First identify what you need to hide
If the sensitive information is inside the window you are showing, a background-window tool cannot cover it. If the problem is a chat or document behind your presentation, drawing rectangles over individual areas creates extra work. Match the tool to the screen layer.
Method 1: remove or hide a browser element
Use this for a private URL, bookmark name, account avatar, customer name, or extension icon inside the browser you are presenting. Full-screen the tab, use a clean demo profile, collapse sidebars, or replace live data with a demo account. This is the safest option because the private information never enters the shared feed.
Method 2: draw a fixed region blur
Use a region-blur tool when the private detail must remain on screen but occupies a predictable rectangle. It works well for a URL bar, account number, participant list, or fixed dashboard panel. Test the mask after scrolling, resizing, or moving the window; a fixed region may no longer cover the intended content.
Method 3: blur background windows
Use Veil when the app you are presenting should stay readable while email, chat, notes, documents, and browser windows behind it should fade to blur. Frontmost Window mode follows the active app; Cover App mode keeps one chosen app clear during a presentation.
Veil does not draw arbitrary rectangles and does not blur part of the active window. For that use case, choose a region-blur tool. The Veil vs BlurScreen comparison explains the difference.
A practical setup for Zoom, Teams, or Meet
- Share one application window if the meeting app supports your workflow.
- Turn on macOS Focus to suppress notification banners.
- Remove sensitive information inside the app you are showing.
- Add a region mask only if a fixed private detail must remain visible to you.
- If you must share the entire display, enable Veil to blur background windows.
- Preview the shared feed before the audience joins.
Common mistakes
- Confusing camera blur with screen blur: webcam background effects do not protect desktop content.
- Expecting window blur to hide the active URL bar: the active app remains clear in Veil.
- Forgetting notifications: use Focus; Veil does not suppress macOS banners.
- Moving content after placing a fixed mask: recheck that the region still covers the sensitive detail.
Related Guides
- Blur your screen on Mac — Choose a method by scenario
- Veil vs BlurScreen — Background-window blur vs fixed region blur
- Blur everything except the active window
- How to hide windows while screen sharing on Mac
- How to Blur Screen During Screen Sharing on macOS
- How to Hide Chat Windows on Mac During Meetings