Window management

Move and resize the window you were last using, without installing anything else.

It needs no new permission. It uses the same Accessibility grant that clipboard pasting already uses.

Settings → Window Management holds the switch. It ships off. While it is off there are no window commands in the launcher, and a shortcut you recorded moves nothing.

The same pane also holds window layouts: saved arrangements of many windows across your displays.

The commands

Halves · Left Half · Right Half · Top Half · Bottom Half

Quarters · Top Left Quarter · Top Right Quarter · Bottom Left Quarter · Bottom Right Quarter

Fourths · First Three Fourths · Last Three Fourths

Thirds · First Third · Center Third · Last Third · First Two Thirds · Last Two Thirds

Sizing · Maximize · Almost Maximize · Reasonable Size · Maximize Height · Maximize Width · Center · Center Half · Center Two Thirds · Make Larger · Make Smaller · Restore Window

Moving · Move Left · Move Right · Move Up · Move Down · Move to Next Display · Move to Previous Display

Fullscreen · Toggle Fullscreen

Spaces · Switch to Previous Space · Switch to Next Space

Settings

Each command's shortcut, alias and launcher checkbox live in this same pane. To switch one command off, clear its shortcut and untick its checkbox. There is no separate per-command switch.

How the sizes are worked out

Gaps. An edge against the screen gets the full gap; an edge between two windows gets half. So two windows side by side leave exactly one gap between them, and every screen edge is inset by one gap. Edges are rounded, so thirds never overlap or leave a one-point seam.

Make Larger and Make Smaller step by 5% of the screen, not the window, so the two undo each other exactly. The largest size is the screen. The smallest is 200 × 150 points or 15% of the screen, whichever is bigger. Past either limit, they do nothing.

Reasonable Size is 60% of the screen, centered, and never more than 1025 × 900 points. On a big 5K display you get a sensible window, not a huge one. Pressing it again changes nothing.

Center Half is half the screen's width at full height, centered. Center Two Thirds is the same, at two thirds of the width.

A window that is too big or off-screen is always pulled back onto the display. The usable area already leaves out the menu bar, the Dock and the notch.

Cycling and Restore

Cycling only applies to the four halves, and it is off by default. With it off, pressing Left Half again just puts the window in the same place. The two modes change that:

• Cycle ½, ⅓ and ⅔ changes the width in place with each press. Top Half and Bottom Half step through heights instead.
• Cycle displays moves the half along every half-slot across your displays, so one shortcut sweeps the whole desk. With two displays, Left Half goes Display 1 left → Display 2 right → Display 2 left → Display 1 right, then round again. With one display it does nothing.

The cycle starts over when you move the window yourself (by more than 2 points), use a different command, move to a different display, or wait a while.

Restore Window goes back one step, not through a history. Left Half → Maximize → Top Right Quarter → Restore Window puts the window back where it started, not where it was last.

Restore Window also works on windows Tinycast has never moved, because it notes the frame before the first change. It remembers up to 64 windows, forgets an app's windows when it quits, and never saves this to disk.

Fullscreen

Toggle Fullscreen asks the window to go fullscreen, then tries pressing its green button, and otherwise does nothing.

It never fakes ⌃⌘F. Apps can use that key for something else, and firing the wrong command would be worse than doing nothing.

It resets the cycle, but keeps the Restore point.

Spaces

Switch to Previous Space and Switch to Next Space move between macOS Spaces without the sliding animation: about 56 ms, instead of about a second for the system's own ⌃← and ⌃→.

They work by sending the same trackpad swipe macOS already uses to switch Spaces, fast enough that the switch finishes instead of animating. Desktop Spaces and fullscreen Spaces are both included.

If you hold the shortcut down, presses that arrive mid-switch are dropped, so a long press never jumps too far. At the first or last Space, macOS does whatever it normally does.

When a window will not move

Minimized windows, sheets and popovers, windows already in native fullscreen, and windows that do not report a position or size are skipped before anything happens.

A window that cannot be resized, like System Information, is left alone rather than half-moved. If an app refuses to shrink, Tinycast lines the window up against its side once, never in a loop.