Is there any method to get all of them into a single folder? It would be easier to browse if they were all in one big folder/fewer folders.
You can use Finder to search for all files.
~/Pictures/Photos Library.photoslibrary/Masters in Finder*
- Press ⌘+F
- Select Search: “Masters” in the toolbar
- Select Type: Image as a search criterion, or
- Use the + button to add more search criteria as required
This will show all photos as a flat list. (Thus, copying them will copy the individual files without the folder structure.)
For easy access, you can use the Smart Folder feature to store this search for later. Just press the save button.
* If you're using Mac OS in a language other than English, the folder may be named in your language, like
~/Pictures/Phototèque.photoslibrary/Masters. The easiest way is to type
open ~/Pictures/*.photoslibrary/Masters from a terminal.