Rectangle
Rectangle is a macOS window management utility that helps you move and resize app windows quickly with keyboard shortcuts and snap areas.
What is Rectangle?
Rectangle is a native macOS utility for arranging application windows into useful positions and sizes. It helps Mac users manage screen space faster by letting them move windows with keyboard shortcuts, edge snapping, and quick layout commands instead of dragging everything by hand. Common uses include placing apps side by side, maximizing a window, moving a window between displays, and organizing work on large or multiple monitors. Rectangle also supports custom shortcuts and additional sizing behaviors for people who want a more tailored desktop workflow. It is designed for everyday productivity on Mac, especially for users who regularly multitask across several windows.
Key features
- Move and resize windows with keyboard shortcuts
- Snap windows into halves, thirds, corners, and full-screen-style layouts
- Drag windows to screen edges to trigger placement actions
- Move windows between displays and reposition them quickly
- Use custom shortcuts for preferred window actions
- Adjust window sizing behavior for different desktop workflows
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Safety overview
Status: Mostly safe
Rectangle is a well-known window management app for macOS, and its behavior is consistent with that purpose. To control other app windows, it may need Accessibility permission in System Settings, which is expected for this type of utility. Review that permission carefully, because any app with Accessibility access can interact broadly with your Mac's interface. The bundle ID com.knollsoft.Rectangle matches the product naming used by Rectangle.
Recommendation: Keep Rectangle if you use keyboard-driven window management or want easier snapping and resizing on your Mac. If you no longer use it, removing it should only affect its window placement shortcuts and snap features.
Common paths
/Applications/Rectangle.app
Cache paths
~/Library/Caches/com.knollsoft.Rectangle
Support paths
~/Library/Application Support/Rectangle
Preference paths
~/Library/Preferences/com.knollsoft.Rectangle.plist
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