Alternatives to Rectangle

Window snapping tool

Window manager

Utility to support moving and resizing using a modifier key and mouse drag

Window manager

Window management utility

Enable Windows-like alt-tab

Window peeking utility app

Resize and reposition apps

Window manager

Utility to move and zoom windows—on one display

Move and resize windows with mouse

Window manager that organizes desktop applications into predefined zones

Window manager

Utility to resize and position application windows

Window manager

Window-tiling keyboard shortcuts

Automatic tiling window manager similar to xmonad

Application window manager focusing on simplicity

Virtual workspace manager

Control windows and applications right from your trackpad

Utility to control window layout using the Ctrl key and the numeric keypad

Window manager

Tiling window manager with tree layouts

Windows manager

Trackpad-oriented window manager

Manage your windows in Mission Control

Tiling and stacking window manager and window resizing tool

Create live window previews for any application

Window manager and productivity tool

App to hide all open apps except the current one

Window and tab manager

Windows manager and desktop organiser

Notch app for window management