See an app's windows from the Dock
Rest the pointer on an app in the macOS Dock and Koi shows its windows above it, minimized ones too. Click one to bring it forward. Pictured on your Mac only.
Start here
What HyperDock does, and what it costs
HyperDock was one of the first apps to add window previews to the Mac's Dock. Hover an app and each of its windows shows, minimized ones and other Spaces too, and you can drag and drop onto them. It also shows music controls over the music app and upcoming events over Calendar, moves and resizes windows with keys and the mouse, and snaps them to the screen edges.
A licence is $9.95 from its site, and it's also on the Mac App Store with “a slightly reduced feature set”. Its download page offers HyperDock 1.8 and lists Mojave, High Sierra and Sierra. It says nothing about newer macOS or Apple Silicon, which is why many people look for an alternative.
We make Koi, so read this with that in mind. Every fact about another app comes from that app's own site, checked October 26, 2026.
The picks
The best HyperDock alternatives for Mac in 2026
1. DockDoor
Best for: The closest thing to HyperDock today, free
DockDoor shows an app's windows when you point at its Dock icon, from every Space and display, and lets you close, minimize or quit from the preview. It adds an Option-Tab switcher, gestures that snap windows, and music controls with lyrics. It's free and open source, needs macOS 13 or later, and is updated often. More in our DockDoor alternatives.
2. Koi
Best for: Simple Dock previews, inside an app that does much more
Rest the pointer on an app in the Dock and Koi shows its windows on this desktop, minimized ones too, each with its title and a small live picture. Click one to bring it forward, or × to close it. It runs on macOS 14 and later, Apple Silicon and Intel.
Where HyperDock does more: Koi has no music or calendar panels on the Dock, no window moving or snapping, and no previews from other Spaces. Koi's previews are one small part of Koi, which is $20 a month or Lifetime, paid once, with dictation, call recording and an assistant in your notch.
3. AltTab
Best for: Switching windows from the keyboard
AltTab has no Dock previews, but its switcher shows every window, with a big preview of the one you pick. Free and open source, Pro $9.99 once, macOS 12 or later.
4. App Exposé, built in
Best for: Free, with nothing to install
Control-click an app in the Dock and choose Show All Windows, or press Control and the down arrow. It fills the screen with that app's windows.
Comparison
HyperDock vs the alternatives
From each app's own site. “Not listed” means the site doesn't mention it.
| Dock previews | Moves and snaps windows | macOS | Price | |
|---|---|---|---|---|
| HyperDock | Yes | Yes | Listed up to Mojave | $9.95 |
| DockDoor | Yes | Snaps, with gestures | 13+ | Free |
| Koi | Yes | No | 14+ | $20 a month, or Lifetime, $199 once |
| AltTab | No | No | 12+ | Free; Pro $9.99 once |
| App Exposé | Full screen | No | Built in | Free |
Honest take
When HyperDock is still the better pick
Stay on HyperDock if
- It still runs well on your Mac and you use its window moving and resizing.
- You like music and calendar panels right on the Dock.
Choosing
Which one should you pick?
- The nearest replacement, free? DockDoor.
- A keyboard switcher instead? AltTab.
- Dock previews plus the rest of Koi? Koi.
See Koi's Dock previews, or the plans on the pricing page.
Keep exploring
The best DockDoor alternatives for Mac
DockDoor alternatives compared: Koi's Dock previews, AltTab, HyperDock and macOS's own App Exposé. What each shows, what it costs and which macOS it needs.
The best AltTab alternatives for Mac
AltTab alternatives for Mac: DockDoor's switcher and Dock previews, Koi's Dock previews, and macOS's own ⌘Tab and App Exposé. What each does, with prices.
The best notch apps for MacBook in 2026
The best MacBook notch apps: Boring Notch and Atoll (free), Droppy, Alcove, DynamicLake, MediaMate, NotchDrop, and Koi. Music, AirDrop, battery and more.
Support
Frequently asked questions
Its download page offers HyperDock 1.8 and lists Mojave, High Sierra and Sierra. It doesn't say anything about newer macOS or Apple Silicon.
DockDoor. It's free and open source, shows windows from the Dock, and adds a window switcher and snapping.
No. Koi shows an app's windows from the Dock, brings one forward or closes it.