Cloud Filer is a graphical cloud file management tool and S3 client. Cloud Filer allows you to upload and download files to cloud storage and can be used as part of your backup strategy. Cloud Filer includes pre-internet encryption and file name obfuscation making access to your cloud data useless without the right password.
Download and install using pip install cloudfiler - see also https://pypi.org/project/cloudfiler/
Osmosys is a GUI enabled download manager and accelerator for written in Python that supports simultaneous downloads, pausing and resuming downloads, and backup state files during download to prevent network errors. Supports all major browsers.
Gbacker is a program to backup and restore files using a Gmail mail account.
It uses the Gmail account as a remote file server.
In contrast to other similar solutions like gdrive, gmailsync etc
gbacker is fully compliant with the Gmail terms of use.