• Your Desktop
• File Explorer windows
• Open- and Save-File-dialogs (requires QuickLook MSI/ZIP version, not Store version)
• Everything (requires Everything to be installed as a service and not be run as admin)
• Directory Opus
• Files
• RX Explorer (since RX Explorer v4.6.0)
• QTTabBar¹
• One Commander
• Ritt

Note: Due to the limitation of Windows Sandbox, these managers need an additional tool to work with the Store version of QuickLook. Click here for details.

• fman (Just specify the path to QuickLook.exe on first use of F3)².
• FreeCommander (setup explained here)
• Total Commander (setup explained here)
• XYplorer (setup explained here)
• Tablacus (simply install the QuickLook addon)

¹ You may notice that the selected file will change when pressing space. The solution is to turn off Enhanced incremental search in view feature in QTTabBar. See #726 for details.

² fman uses space for selecting items, so QuickLook does not override it. However, it is possible to set the F3 preview application to QuickLook. Notes here.