DockDoor 1.42.4

DockDoor adds 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.

DockDoor doesn't replace the Dock. It's a small native app that runs from the menu bar and adds to the Dock that ships with macOS, in Liquid Glass on macOS 26 and later.

Window previews and switching
Find the window you need without hunting through desktops, displays or minimized apps.

• Dock previews: Hover any app in the Dock to see its windows, including ones on other desktops, other displays, and minimized or hidden ones. Each preview has close, minimize, full screen and quit buttons, and a middle-click closes a window without switching to it.
• Alt+Tab for every window: Hold ⌥ and press Tab to see every open window, not just every app. Press Tab to move through them and release to switch. Type to search, or change the shortcut in Settings.
• Command-Tab, with windows: While you hold ⌘ and Tab, DockDoor shows the highlighted app's windows above the built-in app switcher, so you can pick a specific window.

Folders, widgets and more
Get more from the Dock icons you already use.

• Folder Pop: Hover a folder in the Dock to see, sort and open what's inside.
• Music controls: Hover an app that's playing audio to get a player instead of thumbnails, with synced lyrics for Spotify and Apple Music.
• Compact list: Show an app's windows as a list of titles, all the time or once it has a lot of them.
• Large previews: Make thumbnails bigger to tell similar windows apart.
• Calendar: Hover Calendar to see the rest of today's events.

Gestures and shortcuts
Control windows and apps without extra clicks.

• Gestures: Swipe two fingers on a preview to minimize or maximize a window, scroll on a Dock icon to show or hide an app, or shake a preview to minimize everything else.
• Quick quit: Hold ⌘ and right-click a Dock icon to quit the app, or add ⌥ to force quit.
• AppleScript and CLI: Control previews, the switcher and windows from scripts.

Make it look like yours
Choose Liquid Glass (macOS 26 and later), frosted or clear, and set the preview size, spacing, corners and where the window controls sit.

Privacy
Nothing leaves your Mac. DockDoor has no servers to send anything to: no analytics, no usage tracking and no crash reporters. Debug logs are written locally and go nowhere unless you export them yourself.