Otterdock vs DockDoor: Dock Groups or Window Previews (Different Jobs)
DockDoor previews windows when you hover a Dock icon; Otterdock groups apps, files and links behind one icon. Different problems; they can run together.
DockDoor is about windows: hover a running app in the Dock and see thumbnails of its windows to switch between them; DockDoor Pro goes further toward a Dock replacement. Otterdock is about launching: it groups the apps, files, folders and links of a project behind one Dock icon, popup, shortcut or widget. If your pain is finding the right window, look at DockDoor. If it is finding the right thing to open, look at Otterdock. Many people run both. Based on each product's public documentation, not a hands-on test.
On this page
Otterdock and DockDoor both show up when you search for ways to improve the Mac Dock, and both put a floating panel near it. That is where the similarity ends. One is about the windows you already have open; the other is about the things you have not opened yet. This page explains the split so you do not install the wrong tool for your problem.
We make Otterdock. DockDoor's description here comes from its website and public repository, not from testing it ourselves, and we link to both so you can check the current state.
The two problems
"Which window was that?" You have Safari open with twelve windows, or three Finder windows, and clicking the Dock icon brings the wrong one forward. Windows-style taskbars solve this with per-window thumbnails on hover. macOS does not. This is the gap DockDoor fills.
"Where is the thing I need to open?" Your Dock has thirty icons, the project's files are scattered, and the staging URL is a bookmark somewhere. Launching the right set of things takes a scan each time. This is the gap Otterdock fills.
Side by side
| Otterdock | DockDoor | |
|---|---|---|
| Category | Dock organizer (launching) | Window previewer (switching); Pro moves toward a Dock replacement |
| What appears when you hover a Dock icon | Direct, Hover mode, on Otterdock group icons only: the group's items | Thumbnails of that app's open windows, per its site |
| What you click | An app, file, folder or link to open it | A window to bring it forward, or window controls |
| Works on which Dock icons | Otterdock's own group icons | Running apps' icons |
| Groups of apps, files, folders, links | Yes, the core feature | No launch groups in the free app; Pro features per its site |
| Open many items at once | Direct popup Command-A; Launch Group in Shortcuts | Not its purpose |
| Keyboard | Direct: global shortcut per group; popup search and Command-1 to 9 | Per its documentation |
| Widgets | Desktop and Notification Center | Not its purpose |
| Editions | Direct (Intel and Apple silicon) and Mac App Store (Apple silicon) | Free and Pro, per its site |
| Permissions | Mac App Store edition: none. Direct: Accessibility for popup and hover only | See its documentation |
| Free tier | 2 groups × 8 items | Free app focuses on window previews, per its site |
| Price | Pro one-time US$6.99 reference price | See its current product page |
Choose DockDoor if your friction is windows
If you spend the day in two or three apps with many windows each, and the thing that slows you down is bringing the right window forward, DockDoor's previews address exactly that. Otterdock does nothing for window switching; macOS's own tools for that problem are Mission Control, Stage Manager and App Exposé, compared in choosing Mac productivity tools by task.
Choose Otterdock if your friction is launching
If the slow part is getting a task started, finding the five things it needs and opening them, then a group that holds them is the fix, and window previews would not help. Otterdock's Direct edition opens the group in a popup from the Dock or a global shortcut; the Mac App Store edition opens it as a native stack; both put it in a widget. The differences are in Direct vs Mac App Store.
Running both
Their documented roles do not overlap, so using both is reasonable: DockDoor for the running apps on the left of the Dock, Otterdock for the project groups on the right. One practical note: Otterdock's Direct edition in Hover mode and DockDoor both react to the pointer over the Dock. If that feels like too much happening on hover, switch Otterdock to Enhanced click (Settings > Interaction) so its popup opens only on click; the modes are explained in click mode vs hover mode.
The third category to rule out
Neither app replaces the Dock. If what you actually want is a Windows-style taskbar with a button per window, that is a Dock replacement, and the comparison you need is Otterdock vs uBar. The four categories that all get called "Dock apps", and how to tell which one you need, are laid out in what is a macOS Dock organizer.
Frequently Asked Questions
Does Otterdock show window previews?
No. Otterdock shows the items in a group so you can open one; it does not show the windows of running apps. That is DockDoor's job.
Does DockDoor group apps?
Not in the sense of a named launch group. Its free app previews and switches windows; DockDoor Pro, per its developer, expands toward a replacement Dock. Check its site for the current feature list.
Can I run Otterdock and DockDoor at the same time?
Their documented roles do not overlap, so yes in principle. Both Direct Otterdock and DockDoor watch the Dock area, so if hover behaviour feels crowded, use Otterdock's Enhanced click mode instead of Hover.
Do both need Accessibility permission?
Otterdock's Direct edition needs it only for its custom popup and hover; the Mac App Store edition never asks. DockDoor's requirements are documented on its site and repository.