Mosaic
Mosaic is a macOS window manager that helps you quickly resize and arrange app windows with drag-and-drop layouts and shortcuts.
What is Mosaic?
Mosaic is a native macOS window management app for arranging, resizing, and repositioning application windows more efficiently. It is designed for people who regularly work with multiple apps or displays and want faster control than manual window resizing provides. The app lets you apply saved layouts by dragging a window to a layout target, and it also supports keyboard shortcuts for quicker workspace changes. Mosaic includes tools for multi-monitor setups, reusable layout groups, and options for more advanced window placement workflows. Light Pillar Software Ltd also offers a companion remote app for applying layouts from an iPhone or iPad. On Mac, Mosaic fits best into productivity-focused workflows where users want a more organized desktop and less time spent managing windows.
Key features
- Arrange windows with drag-and-drop layout targets
- Resize and reposition windows using keyboard shortcuts
- Create and reuse custom window layouts
- Work across multiple displays with organized window placement
- Use layout groups to switch between saved workspace arrangements
- Control the active Mac window from a companion iPhone or iPad app
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Safety overview
Status: Safe
Mosaic is a legitimate window management utility for macOS. It may request normal permissions related to controlling and arranging windows so its layout features can work properly. Those requests are expected for this type of app. If you no longer use window management tools, removing Mosaic should mainly affect its own layouts, shortcuts, and workspace behavior.
Recommendation: Keep Mosaic if you use it to organize windows or manage multi-display workspaces on your Mac. If you do not use its layout and shortcut features, you can remove it without affecting macOS beyond losing its window arrangement tools and saved app-specific setup.
Common paths
/Applications/Mosaic.app
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