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screen-size-vlv is a free, open-source, native macOS utility for fast everyday window placement.
Use global shortcuts to move the frontmost window to the left or right half of its current display, center it at a size you choose, or expand it to the usable screen area while respecting the menu bar and Dock.
It is a focused, actively maintained alternative for the classic SizeUp-style workflow—built for macOS 13 and later with Swift, SwiftUI, and AppKit. The app stays lightweight in the menu bar, supports launch at login, offers English and Spanish (Mexico), and provides optional visual feedback after every action.
No account, subscription, advertising, telemetry, cloud sync, or remote configuration. Preferences stay on your Mac.
Features
- Global shortcuts for Left, Right, Center, and Full Screen.
- Left/right half-screen placement on the window’s current display.
- Center placement with optional absolute pixel sizing or relative display percentages.
- Usable full-screen placement that respects the menu bar and Dock.
- Menu bar controls for every action.
- Optional non-intrusive visual action overlay.
- Configurable shortcuts: record, clear, disable, or restore defaults.
- Optional launch at login.
- English and Spanish (Mexico) interface.
- Local-only preferences.
- Native SwiftUI + AppKit application for macOS 13+.
- Free and MIT licensed.