01 / DUO
Default
The Hinge Swell
The desktop softens and dissolves symmetrically around the hinge. Pixels expand gently before disappearing into the fold.
Preview in Simulator →
Close your MacBook lid. Watch your workspace smoothly bend, curl, and defocus in real time. Open it back up, and everything returns crisply into focus.
Stillness Cleared (Screen Restored) Drag the slider or tilt your lid. Real macOS desktop frames remain strictly local in your Mac's memory.
Duo is the beloved default. Choose Ghost, Roll, Shutter, Flex, or Iris to alter the tactile feel of your display hinge.
The desktop softens and dissolves symmetrically around the hinge. Pixels expand gently before disappearing into the fold.
Perspective compensation anchors your desktop in 3D space behind the tilting lid, accompanied by progressive optical defocus.
The entire desktop curls into a tight, glossy cylindrical roll traveling downward toward the hinge with specular light wraps.
Four rigid aluminum-like panels slide behind one another into the hinge with sharp contact shadows and mechanical precision.
A continuous display plane bows inward under physical tension before relaxing back into an immaculate flat plane when reopened.
Eight precision camera-iris blades close gracefully around your screen in a restrained mechanical twist as the lid shuts.
Built exclusively in native Swift 6 and Metal 3.0. Zero runtime dependencies, zero accounts, and zero cloud services.
ScreenCaptureKit captures the desktop into bounded local GPU memory buffers only. Frames are never written to disk, never analyzed, and never sent over the network. Mac Fold automatically excludes its own windows from capture.
ScreenCaptureKit → Locked Bounded Frame Store → Metal 3.0 Shader → Display (0 Disk I/O, 0 Network)
Sub-2.3ms 95th percentile fragment shader execution on Apple Silicon. Up to ProMotion 120Hz refresh rates supported.
Direct low-latency reads from MacBook HID Sensor Page 0x20, Usage 0x8A. Runs on a dedicated asynchronous queue without blocking the main UI thread.
Hold the lid still at any angle and the effect smoothly clears after 1–5 seconds (2s default). Settle down and keep working at any physical angle without disruption.
Mac Fold requires a modern Apple Silicon MacBook equipped with the integrated lid-angle sensor.
Download the disk image, allow the first launch, and experience your desktop following your lid.
Download Mac-Fold.dmg, open it, and drag Mac Fold into your Applications folder.
As an open-source unnotarized app, macOS Gatekeeper may show a warning. Simply visit System Settings → Privacy & Security and click Open Anyway.
Click Enable Mac Fold. When prompted, allow Screen Recording so Metal shaders can locally render your desktop into bounded RAM.
Press ƒ ƒ or use the system-wide shortcut to pause Mac Fold anywhere: