See an app's windows from the Dock

macOS shows you an app's icon in the Dock, never its windows. With Koi, rest the pointer on a running app's icon and its open windows show above it, each with its title and a small live picture, minimized ones too. Click one and it comes forward.

1. Open Koi's Settings and go to Notch & tools.
2. Turn on Window previews in the Dock. If Koi still needs Accessibility or Screen Recording, it asks.
3. Rest the pointer on an app in the Dock for a moment.
4. Click a window to bring it to the front, or a minimized one to restore it. Hover one and click × to close it.

• It shows the windows on the desktop you're on.
• With the Dock on the left or right, the previews show beside it.
• Moving to another icon switches at once. Moving away or clicking elsewhere puts them away.
• An app with no windows says “No windows”.
• Nothing runs until you rest on an icon.

The pictures are taken on your Mac while you hover, held for a few seconds and never kept or sent. Nothing is pictured while a password is typed, from password managers, or from windows that ask not to be captured.

DockDoor is free and does far more around the Dock, and AltTab gives you a window switcher on the keyboard. Koi's previews are one small part of a bigger app. See DockDoor, HyperDock and AltTab alternatives.

Koi is $20 a month or $7 for a first week, or Lifetime, paid once. See the plans, or how to turn on Dock previews.