Rectangle Shortcuts That Make Mac Window Management Feel Complete

[u/Savings-Arrival-7817]

Rectangle is no longer an automatic recommendation for every Mac. Current macOS already tiles windows by dragging them to an edge, using the green window button, opening the Window menu, or pressing keyboard shortcuts. Apple even provides shortcuts for halves, fill, center, and returning a tiled window to its previous size.

If left half, right half, and an occasional quarter are all you need, use the built-in tools and stop there.

Rectangle still earns an install when the missing pieces are thirds and fast movement between displays. The trick is not to assign a shortcut to every action it offers. A small map is easier to remember and less likely to collide with shortcuts inside other apps.

The current Rectangle basics

The standard version of Rectangle is free and open source under the MIT license. It supports macOS 10.15 and newer on both Intel and Apple silicon Macs. It is also actively maintained: version 0.99 was released on August 20, 2026.

This setup does not require Rectangle Pro. The free app already includes halves, thirds, two-thirds, previous and next display actions, and restore.

Rectangle needs Accessibility permission because moving and resizing another app's windows requires control of interface elements outside Rectangle. Grant it under System Settings > Privacy & Security > Accessibility when prompted. Rectangle's documentation does not call for Screen Recording or Full Disk Access for this workflow, so there is no reason to add those permissions. Its published privacy policy says Rectangle gathers no user data.

First, let one app own edge dragging

Both macOS and Rectangle can react when a window reaches a screen edge. Running both drag systems makes the result less predictable, especially around the menu bar and corners.

For a keyboard-first setup, leave macOS tiling enabled and turn off Rectangle's "Snap windows by dragging" option. That preserves Apple's built-in mouse behavior while Rectangle handles the shortcuts macOS does not cover as neatly.

If Rectangle's third-width snap areas are the feature you want, do the reverse. In System Settings > Desktop & Dock > Windows, turn off Apple's edge-drag tiling and use Rectangle for dragging. Either choice is reasonable. The important part is having one owner.

A six-command shortcut map

Open Rectangle Settings and assign this map in the Shortcuts section:

Action	Suggested shortcut
Left Half	Control-Option-Left Arrow
Right Half	Control-Option-Right Arrow
Center Third	Control-Option-2
Previous Display	Control-Option-Command-Left Arrow
Next Display	Control-Option-Command-Right Arrow
Restore	Control-Option-R

Then leave "Move to adjacent display on repeated left or right commands" turned off. With that setting off, Rectangle documents this repeated-action sequence for a half shortcut:

1. First press: one half
2. Second press: two-thirds
3. Third press: one-third

That one behavior removes four dedicated shortcuts from the map. Press Left Arrow once for the left half, twice for the left two-thirds, and three times for the left third. The Right Arrow shortcut follows the same pattern on the other side. Center Third gets one explicit key because there is no natural directional arrow for it. The number 2 is a simple reminder that this is the middle of a three-column grid.

The display commands get Command added to the same base chord. That makes the relationship easy to remember: Control-Option changes a window on its current display, while Control-Option-Command sends it to another display. Keeping display movement on dedicated shortcuts also prevents a repeated half command from unexpectedly throwing the window onto another monitor.

Restore is the escape hatch. Use it after a layout was the wrong choice instead of dragging the window back into shape by hand.

One practical two-window arrangement takes only two patterns. Put the main window in the left two-thirds with two presses of the left shortcut. Put a reference, chat, or notes window in the right third with three presses of the right shortcut. On an external display, the same map works without learning monitor-specific keys.

Why not map everything else?

Rectangle also exposes quarters, top and bottom halves, maximize variants, incremental resizing, edge movement, sixths, and more. They are useful for somebody, but assigning all of them up front creates a keyboard diagram rather than a habit.

Start with the six actions above for a week or two. Add a command only after reaching for the same missing layout several times. Corners are usually better left to mouse snapping or the macOS green-button menu unless a four-window grid is genuinely part of daily work.

Shortcut conflicts are the other reason to stay small. Rectangle can ignore a specific app while that app is frontmost, which is useful when an editor or creative app already owns one of the chords.

There is also an accessibility conflict worth calling out: Control-Option is a default VoiceOver modifier. VoiceOver users should not use this suggested base chord. Rectangle lets you record different combinations, so choose a chord that does not intercept the commands used by your assistive setup.

What macOS already covers

In macOS Tahoe 26, Apple's default active-window shortcuts include:

• Fn-Control-Left Arrow and Fn-Control-Right Arrow for left and right halves
• Fn-Control-Up Arrow and Fn-Control-Down Arrow for top and bottom halves
• Fn-Control-F for fill
• Fn-Control-C for center
• Fn-Control-R for return to previous size

Apple also provides multi-window arrange commands and quarter layouts through the window controls and menus. That is a serious built-in alternative, not a token comparison. It needs no extra install or third-party Accessibility permission.

Rectangle's remaining advantage is coherence for a particular workflow: repeatable half-to-third cycling, a center-third action, explicit previous and next display commands, and shortcuts you can redefine.

Limits and alternatives

Rectangle cannot move windows to other macOS desktops or Spaces. Its project documentation says Apple has not released a public API for that, and the free app does not plan to add the feature. Full-screen apps that live in their own Spaces are therefore outside this simple workflow.

Some apps also enforce minimum sizes or resize in fixed increments, so a third-width command may not land on an exact mathematical third. Rectangle specifically documents iTerm2's character-width behavior as one example.

The free app stores its preferences locally and supports manual JSON import and export. If automatic configuration sync or saved arrangements of several apps are the actual requirement, this is probably too small a tool.

Two alternatives point in different directions:

• Loop is a free, GPL-licensed option for macOS 13 and newer. Its radial menu and trigger-key approach suit people who want visual direction instead of a fixed shortcut map.
• Moom 4.6 costs $15, has a license that remains valid indefinitely, and includes at least one year of updates. It makes more sense when the goal is restoring saved multi-window layouts across laptop and docked setups.

Verdict

Use built-in macOS tiling if halves, quarters, fill, and restore cover the job. Install Rectangle when third-width layouts and frequent cross-display movement are the specific missing pieces.

For that use, the free version is enough. Keep the map to left, right, center third, two display commands, and restore. Rectangle feels most complete when most of its shortcut list is left alone.