PortHole: External Monitor
Resolution, Layout & AirPlay
Only for Mac
$1.99
Mac
New in 1.2: save named display layouts and switch setups in one click. Fix blurry external monitors instantly. One-time purchase, no subscription, no tracking.
External monitor looking blurry, stretched or just wrong? PortHole fixes it from your menu bar in one click.
RESOLUTION FIX
macOS frequently connects to an external monitor at the wrong resolution — upscaled, the wrong aspect ratio, or just not the panel's native mode. PortHole detects every connected display, compares its current resolution against its native one, and fixes any mismatch in a single click — or automatically the moment a monitor connects, if you turn that on. Your built-in display is left alone: a deliberately scaled Retina resolution isn't a bug.
NAMED DISPLAY LAYOUTS
Save as many monitor arrangements as you like — "Desk", "Office Dock", "Living Room TV" — and restore any of them instantly from the menu bar. Ideal if you move between docks, or your Mac forgets your arrangement after sleep, wake, or a monitor power cycle. You can also arrange displays by dragging them directly in PortHole, no trip to System Settings needed.
AIRPLAY
Cast to a nearby Apple TV or AirPlay-capable display using the same system route picker as QuickTime and Music, plus a one-click shortcut into System Settings for full screen mirroring.
ALSO
• Dark Mode toggle right in the menu
• Launch at login
• Works with an external monitor as your main display
PRIVACY
No account, no tracking, no data collected. One-time purchase, no subscription.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Named layouts: save as many display arrangements as you like ("Desk", "Living Room TV") and switch between them from the Restore menu.
• Sharper native-resolution detection, including on 4K and high-refresh monitors.
• Auto-fix now only adjusts monitors as they connect, and leaves the ones you've already set alone.
• Arrange Displays and saved layouts now work when an external monitor is your main display.
• Launch at Login shows when macOS needs your approval, with a shortcut to Login Items.
• Deleting a layout now asks you to confirm first.
• Clearer status for each monitor, and better VoiceOver support.
• Version number, Support and Privacy links added to Preferences.
• General polish and stability fixes.
The developer, Luke Welch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Luke Welch
- Size
- 497.3 KB
- Category
- Utilities
- Compatibility
Requires macOS 13.0 or later.
- Mac
Requires macOS 13.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Luke Welch
