Snap any Mac window into place with a number key

How it works

Dragging window edges to line up two apps side by side takes time. With Snap Window, you point at a window and press Option + Q to open a 3×3 position grid. Each number matches a spot on the screen — 4 is the left half, 6 the right half, 1 the top-left corner — and Space fills the screen without entering macOS full-screen mode.

1. Point at a window
2. Press Option + Q
3. Click a spot, or press a number

Details

Point at a visible part of a window and press Option + Q by default. Partially covered windows work too, and the position grid stays open when you release Option. Click a spot or press 1–9 to snap the window into place, press Space to fill the screen, or press Esc to cancel.

1 top left, 2 top half, 3 top right; 4 left half, 5 fill screen, 6 right half; 7 bottom left, 8 bottom half, 9 bottom right. Change the shortcut or restore the default in Settings → Windows.

Layouts use the available space on the display under your pointer, leaving room for the menu bar and the Dock. Fill screen doesn’t enter macOS full-screen mode. App size limits may affect the result.

Good for

• Putting a document and a browser side by side for writing or research
• Sending a window to a corner of a large or external display
• Filling the screen with one window while keeping the menu bar and the Dock visible