When comparing Cyberduck vs Krusader, the Slant community recommends Cyberduck for most people. In the question“What are the best FTP clients for Linux?” Cyberduck is ranked 2nd while Krusader is ranked 3rd.
Ranked in these QuestionsQuestion Ranking
Pro Easy and intuitive user interface
Pro Free to download
It's free to download from the developers according to the FAQ, however donation models are not allowed on the Mac store, which is why it costs $23.99 there.
Pro Dedicated FTP app that performs well
Sticks to being a simple FTP app without adding more features. No need for other file managing features that are not related to FTP purposes. A client that is simply a nice GUI as apposed to just using a command line.
Pro S3 and WebDav
Browses Amazon Simple Storage Service like your harddisk and supports about any webdav service like box, dropbox, google drive or your own personal nas.
Pro Great two-pane interface
Pro Folder synchronization
Pro Virtual file systems
Search results as example saved into virtual folder and can be accessed later. All file operations may be performed on items in search results as if they were files in single folder.
Pro Handles most archives. There is little difference in behaviour between an archive file and a regular folder.
Pro Many operations like copying and moving files can be queued
Long running operations can be queued.
There is no point in doing them in a parallel way, as speed decreases dramatically.
Pro All common operations can be done with keyboard efficiently
In addition, shortcuts can be easily renamed.
Unlike Dolphin and many others.
Pro SFTP support
Pro Multi-rename tool
Pro Custom commands can be added to the menu easily
And they can use the current folder, the selected files....
Pro Searching capabilities and copying/deleting/moving in background
Pro Can view and edit many files
Even editing a file inside a .zip file.
Has hexadecimal viewer embedded for binary files.
Pro Filename association and instant console availability
Con Upgraded to High Sierra, and there's an iCloud conflict when using Cyberduck
Con KDE dependencies
If you don't use KDE, you'll be forced to install quite a large amount of KDE libraries.
Con New releases are infrequent
It can be seen in https://quickgit.kde.org/?p=krusader.git that maintenance work is done in a continous fashion, but no new releases are provided.
Even though it is perhaps the more feature-rich file manager.