Joplin notes can be opened and edited using an external editor of your choice. It can be a simple text editor like Notepad++ or Sublime Text or an actual Markdown editor like Typora. In that case, images will also be displayed within the editor. To open the note in an external editor, click on the icon in the toolbar or press Ctrl+E (or Cmd+E). Your default text editor will be used to open the note. If needed, you can also specify the editor directly in the General Options, under “Text editor command”.
The editor command (may include arguments) defines which editor will be used to open a note. If none is provided it will try to auto-detect the default editor. If this does nothing or you want to change it for Joplin, you need to configure it in the Preferences -> Text editor command.
Some example configurations are: (comments after #)
subl -n # Opens Sublime (subl) in a new window (-n)
code -n # Opens Visual Studio Code (code) in a new window (-n)
gedit --new-window # Opens gedit (Gnome Text Editor) in a new window
xterm -e vim # Opens a new terminal and opens vim. Can be replaced with an
# alternative terminal (gnome-terminal, terminator, etc.)
# or terminal text-editor (emacs, nano, etc.)
open -a <application> # Mac only: opens a GUI application
subl.exe -n # Opens Sublime (subl) in a new window (-n)
code.exe -n # Opens Visual Studio Code in a new window (-n)
notepad.exe # Opens Notepad in a new window
notepad++.exe --openSession # Opens Notepad ++ in new window
Note that the path to directory with your editor executable must exist in your PATH variable (Windows, Linux/Mac) If not, the full path to the executable must be provided.