Octoprint plugin which adds a button to the control area which allows to save camera snapshots.
Install via the bundled Plugin Manager
or manually using this URL:
https://github.com/oneclickmetal/OctoPrint-Camerasnapshots/archive/master.zip
You have to configure a local folder in which to save the snapshots. The folder needs to exist.
You also have to provide a URL where the camera snapshot can be retrieved from.