This program is one of the ones I am able to do two different versions of portable on. Of course, you will have a regular portable version with all of the files visible and in the same folder. However, this is one that I was able to set up a single .exe file for, meaning all of the files are hidden inside of one compressed folder and the turned into the .exe file. To run all you need is that one file.
So what is Cyberduck
Cyberduck is a libre server and cloud storage browser for Mac and Windows with support for FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive, and Dropbox.
this is the single .exe portable version to download.