If you miss Windows Snap Layouts, start with the Mac's built-in tiling on macOS Sequoia 15 or later. It can place windows in halves or quarters. For more shortcut-driven snapping, try Rectangle. For custom saved arrangements, look at a tool such as Rectangle Pro.
Glidro offers another approach: a scrolling strip of windows that can extend beyond the screen. Which option suits you depends on whether you want a fixed arrangement or room to move through more windows.
Try it right here — this is a working model of Glidro, not a video.
A working model of Glidro, not a video. Drag a title bar to reorder, click a Dock icon to open an app, close a window with its red button. In the real app every key here is ⌥ plus the key.
Hover over the green button at the upper left of a window. Choose a position under Move & Resize, or a multi-window layout under Fill & Arrange. You can also drag windows to screen edges and release when the highlighted tile appears. Apple's tiling guide covers macOS 15 and later.
Split View pairs two apps in a full-screen Space. Desktop tiling keeps the windows on the desktop. Try the desktop arrangement first if you want other windows readily accessible.
For an email window beside a browser, that may be all you need. Before installing an app, try opening a third window and switching among the three. That will tell you more about your needs than choosing a tool from a feature list.
Rectangle is free and open source. It moves and resizes windows through keyboard shortcuts and screen-edge snap areas. It is a straightforward option if you want to place a window in a half or corner and leave it there.
After choosing an action, the window occupies that part of the display. Extra windows can overlap the arrangement, so you still need a way to switch among them. Our Glidro and Rectangle comparison explains how fixed snapping differs from a scrolling layout.
FancyZones is a Windows PowerToys feature that lets you define zones and snap windows into them. If that is the behavior you miss, look for a Mac app with custom positions and saved layouts.
Rectangle Pro, a separate paid app, supports saved arrangements and custom sizes and positions. Its layout entries can also act as snap targets. Those features are closer to a fixed-zone workflow than Glidro's scrolling strip, though the interface and behavior differ from FancyZones.
For example, if you always want a spreadsheet in the middle of a wide monitor, email on the left and a report on the right, a saved fixed arrangement is a sensible place to start. Check the tool's display rules and how it matches multiple windows from the same app before relying on that setup.
Consider a different task: you begin with a browser and a document, then open two more references. In Glidro, the windows occupy columns along a horizontal strip. You move through the strip while keeping windows at usable widths. Some windows can be outside the visible area.
This is useful if you prefer to preserve a readable document width instead of fitting every new window into the current screen. A fixed layout is easier to understand when you need all its assigned windows visible together.
With Glidro's default bindings, Option + Left or Right focuses neighboring windows, Option + Shift + Left or Right changes their order, and Option + R cycles the focused column's width. Follow the setup guide and check any custom bindings you have saved.
Glidro doesn't provide a FancyZones-style custom zone editor. Read the scrolling window manager explanation if you want to understand the strip before trying it.
On a Mac, Command + Tab switches between apps. To move between open windows of the front app, use Command + grave accent, usually the backtick key near Tab. Keyboard layouts and conflicting input-source shortcuts can affect that binding. Apple lists both in its keyboard shortcut reference.
This distinction matters when you have several Excel workbooks or browser windows open. A window placement app solves where they sit; finding the right window is a related task. Learn the built-in switching keys alongside whichever layout method you choose.
For a simple pair, begin with native tiling. Add Rectangle when you want more fixed snapping shortcuts. Consider custom layouts for repeatable positions on a large display, or Glidro if you want to move through readable columns as your work grows.
This guide is published by Glidro, a paid scrolling window manager for Apple silicon Macs running macOS 13 or later. The options above serve different workflows; the most useful choice is the one that matches how you want your windows to behave.