Cloak

Hide your screen during screen sharing while still being able to see and use your computer normally.

What is Cloak?

Cloak is a macOS app that creates a shareable window for screen sharing. Instead of sharing your actual screen, you share the Cloak window. When you need privacy, toggle privacy mode and viewers see a placeholder while you continue working normally.

Features

• Privacy Toggle: Instantly hide your screen with a global hotkey
• Multiple Privacy Modes: Choose between blur pattern, custom image, or black screen
• Global Hotkeys: Work even when Cloak isn't the active app
• Fullscreen Support: Use Cloak in fullscreen for a cleaner look
• Hover Controls: Stop/Privacy buttons appear only when you hover over the window
• Self-Hiding: Cloak window and controls are automatically hidden from the capture
• App Exclusion: Hide specific apps from the shared screen (e.g., Slack, 1Password)

Download

Download the latest version from the Releases page.

First Launch

Since Cloak is not signed with an Apple Developer certificate, macOS will block it on first launch. Choose one of the following methods:

Method 1: Terminal (Recommended)

Run this command in Terminal before opening Cloak:

xattr -cr /Applications/Cloak.app

Open Cloak normally.

OR

If you see a dialog saying the app is "damaged and can't be opened":

Important: Click "Cancel" (not "Move to Trash") when you see this dialog. Then run the Terminal command above and open Cloak normally.

Method 2: System Settings

1. Try to open Cloak (it will show "App is damaged and can't be opened")
2. Click "Cancel" (not "Move to Trash")
3. Go to System Settings → Privacy & Security
4. Scroll down to find Cloak and click "Open Anyway"
5. Authenticate as an administrator
6. Cloak will now open

You only need to do this once after downloading.