How to Open a New Window From a Dock Icon on Mac

Clicking a Dock icon doesn't open a new window — it switches to the app and shows whatever windows already exist. When you want a fresh window without touching the menu bar, the Dock can do that too; it's just hiding in the right-click menu.

Right-click for a new window

1. Right-click (or Control-click) the app's icon in the Dock.
2. Near the top of the menu, click New Window.

Browsers and Finder show New Window; document apps like Pages, TextEdit, and Numbers show New Document instead — same idea, fresh workspace. Many apps add their own variants to this menu: Safari and Chrome offer New Private/Incognito Window, Mail offers Compose New Message, Terminal offers new windows with specific profiles. Right-click your most-used apps once just to see what they've stashed there.

If the app isn't running yet, there's nothing to arrange: clicking the icon launches it, and nearly every app opens a fresh window on launch anyway.

Why a plain click doesn't do this

A regular click means "bring this app to the front," nothing more. macOS then shows the app's existing windows exactly as you left them; if every window is minimized, clicking typically restores one, and if the app has no windows at all, most apps respond by creating one. That's why clicking sometimes appears to "open a new window" and sometimes doesn't — it depends on what already exists. The keyboard equivalent of the menu item is usually faster once the app is frontmost: Cmd+N in almost every Mac app.

A true second instance with open -n

New Window gives you another window of the same running app. Very occasionally you want the app itself running twice — two separate processes. Terminal can force that:

# launch a second, independent instance of an app
open -n -a "TextEdit"

Know the caveats before you lean on this. Most Mac apps are written assuming one instance: two copies share the same preference and cache files, which can cause conflicts, and the second instance may behave oddly with documents, sync, or licensing. The Dock will show two icons for the app while both run. There's no lasting change to undo — just quit the extra copy with Cmd+Q — but treat open -n as a tool for edge cases (testing a clean window state, isolating a hung workspace), not a daily driver. For everyday multitasking, multiple windows of one instance do everything you need.

Juggling the windows you just opened

Once an app has several windows, the Dock helps there too: right-click the icon and every open window is listed at the top of the menu — click one to jump straight to it. The Window menu in the menu bar does the same, and Cmd+` (backtick) cycles between an app's windows from the keyboard.

Too many windows now?

The opposite skill is just as useful: pulling every scattered window of one app back together. Finder and Safari can do it natively — see how to merge all windows on Mac.