Move and resize windows on macOS with keyboard shortcuts. Rectangle is a window management app based on Spectacle Wndow Manager, written in Swift (programming language).

There are many alternatives to SizeUp for Mac if you are looking for a replacement. The best Mac alternative is Rectangle, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to SizeUp and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to SizeUp are BetterTouchTool, SnapZones, MacsyZones and WindowKeys.
Move and resize windows on macOS with keyboard shortcuts. Rectangle is a window management app based on Spectacle Wndow Manager, written in Swift (programming language).

BetterTouchTool is a great, feature packed app that allows you to configure many gestures for your Magic Mouse (1 & 2), Macbook Trackpad and Magic Trackpad (1 & 2) and also Mouse Gestures for normal mice.




It has nothing to do with automatic window resizing and positioning


Organize windows with ease using SnapZones. Enjoy magnetic snapping, predefined and custom layouts, multiple display configuration, and seamless transitioning between workspaces. SnapZones auto-starts at login, ensuring streamlined productivity for macOS users in any environment.


Customize layouts and sections for organizing windows into defined zones on macOS, easily snap and rearrange application windows, support multitasking needs, reduce desktop clutter, and enhance work efficiency for users managing multiple windows.

Access all native macOS window tiling commands in one place — the Tiling Panel. Customize keyboard shortcuts and use them on any keyboard, even third-party ones.

A native macOS menu bar app that provides quick window tiling with keyboard shortcuts and visual grid overlay. Just press QWE, ASD to tile your windows instantly. DRM-free, one-time purchase for all your Macs.


Split screen and organize windows on Mac with keyboard shortcuts, drag-and-drop zones, and professional layouts. Better than native Split View. Multi-monitor support.



Divvy is an entirely new way of managing your workspace. It allows you to quickly and efficiently "divvy up" your screen into exact portions.




Moom makes window management as easy as clicking a mouse button—or using a keyboard shortcut, if you're one of those types of people.




ShiftIt is an application for OSX that allows you to quickly manipulate window position and size using keyboard shortcuts. It intends to become a full featured window organizer for OSX. It is a complete rewrite of the original ShiftIt by Aravindkumar Rajendiran which is not...


snApp is a powerful window management utility, built for the Mac. At its core, it is powered by the award-winning Siri Shortcut, Snap.


SMBAct is the all-in-one cross-platform solution that allows you to keep your windows and applications well-organized and significantly simplify the process of interaction with them.



BetterTouchTool is the best alternative to SizeUp for me because I only wanted to use SizeUp for keyboard shortcuts to move windows between desktops. SizeUp it looking to be pretty dated, and requires you to release all modifier keys in order to initiate the move to a different desktop. BetterTouchTool is a behemoth app that does 100x more than what SizeUp does, but that works for me.