DockDoor

DockDoor provides macOS users with a window‑preview and alt‑tab switching experience that mirrors the taskbar previews found on other platforms. By hovering over a dock icon or invoking the Alt+Tab shortcut, users can see live thumbnails of each open window and select the desired one without relying on the mouse. The application runs entirely locally, does not collect data, and is released under an open‑source license, ensuring privacy‑first operation.

The tool offers configurable preview layouts, customizable keybindings, and additional enhancements for the Cmd+Tab switcher, allowing users to tailor the interface to their workflow. Settings include appearance options, gesture support, and filters that let users control which windows are displayed.

Designed as a native macOS utility, DockDoor integrates seamlessly with the system’s dock and window manager, targeting power users and anyone who wants faster, visual window navigation without third‑party cloud services.