Rectangle is a free and open-source window management utility for macOS that allows you to efficiently move and resize windows using intuitive keyboard shortcuts or by dragging them to screen edges. Based on the classic Spectacle app, it brings the popular Windows "snap" functionality to Mac, enabling powerful multitasking and a cleaner, more organized desktop.
Step 1: Launch Terminal
Hold Command (⌘) + Space → enter Terminal and press Return
Step 2: Execute the Rectangle App Script
Copy the command below into the Terminal window and hit Return
Effortless Window Snapping: Drag any window to the edges or corners of your screen to automatically resize it to predefined positions, such as left/right halves, quarters, or thirds, making multitasking seamless.
Customizable Keyboard Shortcuts: Control your window layout entirely from the keyboard with a comprehensive set of shortcuts for actions like maximizing, centering, or moving windows to specific screen sections, which can be fully customized to your preference.
Extensive Window Actions: Beyond basic snapping, Rectangle offers a wide variety of actions, including moving windows to different displays, almost-maximizing, and resizing to specific fractions like thirds, sixths, and ninths for complex layouts.
Lightweight and Free: As a completely free and open-source application, it runs quietly in the background without consuming significant system resources, providing essential functionality without any cost.
Native macOS Experience: Built with Swift, Rectangle is optimized for modern Macs, including Apple Silicon, and integrates smoothly with the macOS environment, ensuring stability and performance.
Import/Export Configuration: Easily back up your personalized settings and keyboard shortcuts or transfer them to another Mac using the simple JSON import/export feature, making setup on a new machine effortless.