Neither Goodreads nor StoryGraph allows a browser to read your account directly, so this reads their export files instead — nothing is uploaded and no login is involved.
GOODREADS
My Books → Import/Export → Export Library. Open the CSV, copy all, paste below.
STORYGRAPH
Manage Account → Export StoryGraph Library. Same paste.
OR JUST TYPE
One title per line, optionally Title, 2024-03-11 for a finish date.