Rectangle

Screenshot

About Rectangle

Rectangle is a lightweight macOS window manager, rewritten in Swift as a spiritual successor to the discontinued Spectacle app. It lets users snap windows into halves, quarters, thirds, and other grid positions by dragging to screen edges and corners, or by using fully customizable keyboard shortcuts. Beyond basic snapping, Rectangle supports moving windows between displays, resizing only a window's height, per-app shortcut ignoring for apps with conflicting keybindings, and a URL scheme for scripting window actions from the terminal or other tools. Configuration can be imported and exported as JSON for syncing across machines, and debug logging is built in for troubleshooting window-behavior issues. Rectangle is free and open source, while a separate commercial Rectangle Pro app builds additional features like multi-display space switching on top of it.

Key Features

• Drag-to-edge and drag-to-corner window snapping
• Fully customizable keyboard shortcuts for all actions
• Halves, quarters, thirds, fourths, sixths, eighths, and ninths grid positions
• Move windows between displays
• Almost-maximize and maximize-height actions
• Per-app shortcut ignoring for conflicting keybindings
• URL scheme for scripting window actions
• JSON config import/export for syncing preferences across Macs
• Built-in debug logging for troubleshooting
• Successor to the discontinued Spectacle app
• Installable via direct download or Homebrew cask
• Actively maintained with frequent community-contributed releases
• Foundation for the commercial Rectangle Pro app
• Fully open source under the MIT License

Useful Links