macOS - Run multiple instances of an application - Apple/Mac Hardware https://www.tweaking4all.com/forum/applemac-hardware/macos-run-multiple-instances-of-an-application/ Tweaking4All.com Discussion Board en-US Wed, 22 Apr 2026 20:44:55 +0000 wpForo 60 macOS - Run multiple instances of an application https://www.tweaking4all.com/forum/applemac-hardware/macos-run-multiple-instances-of-an-application/#post-5082 Thu, 28 Sep 2023 10:06:23 +0000 Sometimes, it's rare, I know, we need multiple instances open of a given application.
MacOS by default will not let you do this but with the following trick you can do this from terminal by using the "open" statement with the "-n" parameter (n = new instance).

For example, we can open TextEdit with the following statement in Terminal (Applications -> Utilities -> Terminal):

open /System/Applications/TextEdit.app

if we want to open another instance of TextEdit, then we can do that with:

open -n /System/Applications/TextEdit.app
]]> Apple/Mac Hardware Hans https://www.tweaking4all.com/forum/applemac-hardware/macos-run-multiple-instances-of-an-application/#post-5082