Rectangle Ultra

Move and resize Mac windows with a keystroke, or by dragging them to an edge. Free and open source.

Download for Mac View on GitHub

macOS 14 or later. No account, no telemetry.

Try it in your browser

Notes

Saturday

Pick up the bike from the shop before noon.

Call about the flat on Elm Street, ask if the kitchen gets morning light.

Finish the travel budget and send it round before Sunday dinner.

Downloads

Rectangle Ultra.zip 2 MB
Boarding pass.pdf 180 KB
Garden plan.png 3 MB
Recipes Folder
Tax 2025 Folder

Terminal

$ make app $ make install $ open -a "Rectangle Ultra" $ _

Click a window, then press ⌃⌥← (Control, Option, Left). Press it again to cycle through 1/2, 2/3 and 1/3. Or drag a title bar to an edge or corner.

Shortcuts

The real defaults. Press them on your keyboard, or tap them here.

Halves

Corners

Thirds

Whole window

On your Mac, ⌃⌥⌘← and ⌃⌥⌘→ also send a window to the previous or next display. If Rectangle is already running here, it catches these keys first: use the buttons instead.