How to Share Part of Your Screen on Mac (2026 Guide)

Sharing your entire screen during a video call can expose private messages, notifications, and unrelated windows. This guide shows you how to share only the part of your screen that matters, using macOS built-in tools and Conjuly's screen region capture.

Why Share Only Part of Your Screen?

There are several compelling reasons to share a portion of your screen rather than the whole thing during video calls and presentations.

• Privacy: Keep Slack messages, email notifications, personal tabs, and other sensitive content out of view. A misplaced notification during a client call can be embarrassing or even a compliance issue.
• Focus: Show your audience exactly what they need to see. When you share a full screen, viewers often get distracted by toolbars, docks, and other visual clutter that is irrelevant to your presentation.
• Ultrawide monitors: If you use a 34-inch or 49-inch ultrawide display, sharing the entire screen makes everything appear tiny and unreadable to anyone on a standard monitor. Sharing a region lets you present at a usable scale.
• Multi-monitor setups: You may want to share content from one area of one display without exposing everything across all your screens.

Whatever your reason, macOS provides a few built-in options, though they come with limitations. Conjuly fills the gaps with a more flexible approach.

macOS Built-In Options and Their Limits

macOS does offer some ways to limit what you share, but each has trade-offs.

Share a Single Window

Most video conferencing apps let you share a specific window instead of your full screen. This works well when your content is contained in one window. However, it falls short when you need to show part of a window, content that spans multiple windows, or a specific region of a large application.

Use a Portion of Screen (Zoom)

Zoom offers a "Portion of Screen" sharing option that lets you drag a green rectangle over an area of your display. This is the closest built-in equivalent to what Conjuly does, but it only works in Zoom and can feel clunky. You cannot record the region, export it, or use it as a virtual camera feed. Other apps like Microsoft Teams and Google Meet do not offer this feature at all.

Screenshot Toolbar (Command + Shift + 5)

The macOS screenshot toolbar lets you capture or record a portion of your screen, but it is not designed for live sharing. It saves a file to disk. You cannot use it to stream a selected region into a video call in real time.

How Conjuly Solves Partial Screen Sharing

Conjuly gives you two main approaches to share part of your screen on Mac: the mirror window approach and the virtual camera approach. Both work in any video conferencing app.

Approach 1: Mirror Window

This is the simplest method. Here is how it works step by step:

1. Open Conjuly and create a new capture region by dragging over the area of your screen you want to share.
2. Conjuly creates a mirror window that displays a live copy of that region.
3. In your video conferencing app (Zoom, Teams, Meet, or any other), choose to share a window and select the Conjuly mirror window.
4. Your audience sees only the content inside your selected region, updated in real time.

You can resize or reposition the capture region at any time during the call. The mirror window updates instantly. This approach works universally because every conferencing app supports window sharing.

Approach 2: Virtual Camera

The virtual camera approach is even more seamless for your audience:

1. Select your screen region in Conjuly.
2. Enable Conjuly's virtual camera output.
3. In your video conferencing app, switch your camera source to "Conjuly Virtual Camera."
4. Your captured region now appears as your camera feed. Viewers see your screen content as if it were a webcam.

This is particularly useful when you want to quickly toggle between showing your face and showing a screen region without juggling screen share controls. You can also add a webcam overlay to keep your face visible in a small picture-in-picture window while sharing your region.

The virtual camera works in Zoom, Microsoft Teams, Google Meet, Slack, Discord, and any other app that supports webcam input.

Tips for Different Apps

Bonus: Record Your Shared Region

One advantage of using Conjuly over macOS built-in tools is that you can record the region you are sharing. This is useful for creating meeting recaps, tutorials, or documentation. You can export your recording as a video file or as an animated GIF for quick sharing in chat or documentation.

If you need to show multiple regions at once, Conjuly's Grid Mirror feature lets you composite several captured areas into a single view. This is ideal for presentations where you need to reference a design file, a code editor, and a browser simultaneously.