flickr to dropbox to google to yandex and other clouds migration
flickr to dropbox to goog (googledrive and googlephotos) to yandex and other clouds migration without using any of your adsl bandwidth
https://www.multcloud.com/tutorials/move-photos-from-flickr-to-google-photos-1247.html
You can use it without installing because it is a web app. Multcloud is a multiple cloud storage manager that allows users sync, transfer or backup data across different clouds, such as Google Drive, AmazonS3, Dropbox, Box, OneDrive, FTP, Amazon, etc., easily and freely.