PortalBox
A macOS screen sharing app that lets you share part of your screen in Zoom, Google Meet, Teams, and more. Draw a box, get a live preview window, and share only what you want.
macOSProductivityVerified One-TimeCommunity Suggested
About
Draw a resizable box anywhere on your screen. PortalBox mirrors only that area into a clean preview window, perfect for ultrawide screens. PortalBox turns your region into a dedicated preview window you can share in Zoom, Meet, Teams, and more. Pause or resume the live preview instantly from the menu bar or a shortcut. Nothing updates until you say so.
Verified Jan 30, 2026
portalboxapp.com$9
One-time payment
No subscription required
Pricing verified at time of listing. Confirm on official site.
Was this tool listing useful?