Moom adds a popup to the macOS green maximize button that lets you snap windows to halves, thirds, quarters, or custom-defined layouts with a single click or keyboard shortcut. It can save and restore full window arrangements, making it easy to return to a known multi-window setup with one keystroke. Simpler than Rectangle Pro for layout snapshots.
Moom
Window sizing and arrangement via menu bar
Moom Cheatsheet
Saved Layouts
Window → Save Window Layout Snapshot saves the current arrangement of all windows. You can restore it anytime from the Moom menu bar icon. Assign a keyboard shortcut for instant recall.
Custom Moves
In Preferences → Custom, build sequences of move/resize actions triggered by a single shortcut. Chain ‘move to top-left quarter + resize to 25%’ into one keystroke.
Hover Delay
Set the popup delay in Preferences so it doesn’t trigger accidentally when reaching for the close button. 0.3–0.5 seconds is a comfortable default.
Moom Shortcuts
General
| Shortcut | Action |
|---|---|
| ⌃` (default) | Activate keyboard control |
| Arrow keys | Move window |
| ⇧Arrow | Resize window |
| Return | Confirm placement |
| Escape | Cancel |
| ⌘, | Preferences |
Snap Zones
| Shortcut | Action |
|---|---|
| Hover green button | Show snap popup |
| Click half/quarter | Snap to that zone |
| ⌘⌥← | Left half (custom) |
| ⌘⌥→ | Right half (custom) |
| ⌘⌥↑ | Maximize |
| ⌘⌥↓ | Center |