DockDoor

DockDoor brings window previews to the macOS Dock. Hover an app in the Dock to see all of its open windows as live thumbnails, then click one to switch to it, or close, minimize and quit it right from the preview.

It does not replace the Dock. It is a small native app that runs from the menu bar and adds to the Dock that ships with macOS. The project says nothing leaves your Mac, with no analytics, usage tracking or crash reporters.

Highlights

• Dock previews for an app's windows, including ones on other desktops or displays and minimized or hidden windows
• Alt+Tab switcher that shows every window rather than every app, with type-to-search
• Command-Tab view that shows the highlighted app's windows
• Folder Pop to see, sort and open what is inside a Dock folder
• Music controls with synced lyrics for Spotify and Apple Music when you hover a playing app
• Gestures, quick quit shortcuts, and AppleScript and command line control