No.
The online version Pluginsis listed in the "Advanced" section.

In offline mode, as well as in the Chrome app, you don’t see this option

This means that you cannot add plugins to the standalone version.
The rest of the features that you miss in the standalone version
- , Dropbox, GitHub ..
- .
- -
- PlantUML.
- .
- .
- PDF, PDF.
- .
source: draw.io
?
, - . , . .