What is Raybeam?

Raybeam is a macOS application (macOS 14+) that lets you share a draggable, resizable region of your screen during video calls. Instead of sharing your entire display or a single window, you define a custom rectangle that follows your cursor and updates live. It works with Zoom, Slack, Teams, and any app that uses the standard screen-sharing flow.

Who it's for

• Ultra-wide monitor users – Share a focused band across a massive display without forcing viewers to see the full width.
• Multi-monitor professionals – Select content from any combination of screens without switching sources or sharing everything.
• Presenters who need precision – Share exactly the pixels you want, whether that's part of a window, two apps side by side, or a custom area that changes during a call.

Key features

Custom draggable region

Define any rectangle on your Mac by drawing it once. Drag and resize the region anytime during a call, and the live stream updates instantly. The region can span multiple windows or just a portion of one.

Hidden apps

Choose specific applications whose windows should never appear inside your shared rectangle. Their pixels are replaced by whatever sits behind them on the desktop—useful for personal chats or anything you don't want mirrored.

Drawing mode

Turn on draw mode to sketch freehand on top of your capture. Marks are baked into the stream, so everyone on the call sees your annotations in real time.

Global hotkeys

Register keyboard shortcuts to pick a new region, toggle draw mode, or stop streaming—all without opening the menu bar panel. Raybeam stays out of the way until you need it.

What stands out

"Raybeam adds a third path: a live rectangle you place anywhere on your desktop."

Most video apps only let you share your whole screen or pick a single window from the system sheet. Raybeam gives you a third option—a custom region that you can reposition and resize during a call. This is especially powerful for ultra-wide monitors where sharing the full display forces viewers to scroll, or for multi-monitor setups where you need content from two screens at once.

Worth checking out if…

You frequently present on an ultra-wide or multi-monitor Mac and want to share only the relevant portion of your screen. Raybeam is also worth a look if you need to hide personal windows during a presentation, annotate your stream live, or control screen sharing entirely from the keyboard.