ShiftIt
Managing window size and position in OSX.
ShiftIt is a macOS utility that lets users reposition and resize application windows through configurable keyboard shortcuts. It runs from the menu bar—optionally hidden—and supports most Cocoa and X11 windows, offering actions such as snapping windows to screen edges or cycling through predefined sizes. The tool is distributed as an unsigned binary for macOS 10.7 and later, requiring a one‑time “Open” confirmation on first launch.
Targeted at users who want faster, keyboard‑driven window management, ShiftIt provides a lightweight alternative to manual dragging and resizing. Preferences can be adjusted via the menu bar icon or command‑line defaults, and the application reports compatibility issues for certain toolkits, such as GTK+ on macOS.
The project is open source under the GPL v3 license, currently maintained in a stable state but awaiting a new maintainer, with development likely paused until that transition is completed.
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