portalbox ☆
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Description:
Share a region of your screen in video calls
Type: Cask  |  Latest Version: 0.2.5@0  |  Tracked Since: Dec 26, 2025
Links: Homepage  |  formulae.brew.sh
Category: Productivity
Tags: screen-sharing video-call productivity virtual-camera utility
Install: brew install --cask portalbox
About:
Portalbox is a utility that allows users to select and share a specific region of their screen as a persistent video source. This virtual camera feed can be used in any video conferencing application, enabling focused sharing without revealing the entire desktop. It streamlines the process of sharing specific content like a single application window or a portion of a design.
Key Features:
  • Select and share any screen region as a video source
  • Works with all major video conferencing apps (Zoom, Teams, Meet)
  • Creates a virtual camera for seamless integration
  • Lightweight and easy to use
Use Cases:
  • Presenting a specific app window without sharing your entire screen
  • Sharing a section of a design or document for focused feedback
  • Keeping notifications and other desktop activity private during calls
Alternatives:
  • OBS Studio – More powerful but complex; Portalbox is simpler for quick region sharing
  • Built-in screen sharing – Less precise; Portalbox offers persistent region selection
Version History
Detected Version Rev Change Commit
Feb 12, 2026 4:55am 0.2.5 0 VERSION_BUMP ce2ebb94
Jan 5, 2026 7:26pm 0.2.4 0 VERSION_BUMP ace5d2b6
Dec 31, 2025 4:22pm 0.2.3 0 VERSION_BUMP bae1b691
Dec 28, 2025 1:39am 0.2.0 0 VERSION_BUMP eecc3c08
Dec 27, 2025 1:31am 0.1.4 0 VERSION_BUMP 48a42b1b
Dec 26, 2025 3:17pm 0.1.0 0 VERSION_BUMP e7521e9d
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