Does Notepad++ show all hidden characters?

In newer versions of Notepad++ (currently 5.9), this option is under:

View->Show Symbol->Show All Characters

or

View->Show Symbol->Show White Space and Tab

Yes, it does. The way to enable this depends on your version of Notepad++. On newer versions you can use:

Menu ViewShow Symbol → *Show All Characters`

or

Menu ViewShow SymbolShow White Space and TAB

(Thanks to bers' comment and bkaid's answers below for these updated locations.)


On older versions you can look for:

Menu ViewShow all characters

or

Menu ViewShow White Space and TAB