Tiler

A macOS menu-bar utility that places the active window with hotkeys and three-finger trackpad swipes: halves, full screen, a centered third — on any of your displays.

• Recognizes a swipe only when exactly three fingers move together in one direction, so ordinary scrolling and resting palms don't affect your windows.
• Swipe angles can be calibrated to your hand in about a minute.
• Light on resources: under 1% CPU when your fingers are off the trackpad.
• Prevent Sleep: keep the Mac awake on demand — indefinitely, for a set duration, until a chosen time, or with the lid closed — plus an optional battery-side Deep Sleep (hibernate) profile.

Shortcuts and gestures

Input	Action
⌃⇧← / ⌃⇧→	left / right half of the current screen
⌃⇧↑	maximize
⌃⇧↑ ↑ (double press)	full height, centered, ⅓ width
⌃⇧↓	restore the window's previous frame
⌘⌃⇧← / ⌘⌃⇧→	halves on the next display
⌃A	lock the screen
3-finger swipe ← / → / ↑	left half / right half / maximize
⇧ + 3-finger swipe ← / → / ↑	left third / right third / centered third
⌘ + 3-finger swipe ← / →	halves on the next display (⇧ combines: thirds)

Swipe-down, two- and four-finger movements do nothing. The full reference lives in the app: menu bar → Tiler.

Prevent Sleep

The menu-bar Prevent Sleep section keeps the Mac awake on command — indefinitely, for a fixed duration (10 min … 24 h), or until a specific time. The menu-bar icon turns red with a coffee-cup badge while a session runs.

• Keep display awake (Settings → Power) also holds the screen on; off by default, so only the system stays awake.
• Battery floor (default 20%) auto-stops a session on battery once the charge drops to the floor, with a notification and no surprise restart.
• Prevent sleep with the lid closed runs the Mac folded; it needs an administrator password and gets hot — never leave it in a bag.
• Deep Sleep on lid close (Settings → Power) switches the battery-side sleep profile to full hibernation for near-zero drain; wake then takes ~10–20 s.

Install

1. Download Tiler-x.y.z.zip from Releases.
2. Unzip and move Tiler.app to ~/Applications.
3. Open it and grant the Accessibility permission when asked — that's the one thing Tiler needs to move windows.

Window-tiling hotkeys (⌃⇧ arrows) are off by default — turn them on in Settings → General if you want them alongside the gestures. The ⌃A lock-screen hotkey is on by default.

Requires macOS 15 or later — universal binary (Apple Silicon + Intel). Tiler targets macOS 26 and is verified on 26.5 (Apple Silicon); older versions can run it, but are untested for now.

If gestures don't work well

Open Tiler → Settings → Gestures → Calibrate — a guided one-minute dialog adapts recognition to how you actually swipe. If system three-finger gestures (Mission Control, three-finger drag) are enabled, Tiler will point at the exact setting to change.

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License: Apache-2.0