In Google Chrome's Developer Tools' Sources tabs there is a left side panel which has three tabs with the first one being Sources. Is there a way to download a folder with multiple files and nested folders from this interface? You can right click individual files and 'Save as...' but this is cumbersome.
Currently not possible.
"Saving whole folders is not currently supported."
https://github.com/GoogleChrome/devtools-docs/issues/30#issuecomment-76999063
Here is the corresponding issue in the Chromium Bug Tracker: https://bugs.chromium.org/p/chromium/issues/detail?id=675894