I looked around for a tool to do this for about an hour last night. This was the best way I found because it can run in the background and if it gets interrupted, it will pick up where it left off. Just open up terminal and run the script.
dan/hivelogic-flickrtouchr at master – GitHub:
“A Python script to grab all your photos from flickr and dump them into a directory, organized into folders by set name.
Original author is Colm MacCárthaigh.
Changes include tweaks to download full-size original images and improvements in handling UTF8 file and photoset names.
Run it like this:
python flickrtouchr.py FlickrBackupFolder
You’ll be prompted to authorize with Flickr, and then the magic happens.”