When comparing Krusader vs jFileProcessor, the Slant community recommends Krusader for most people. In the question“What are the best file managers for UNIX-like systems?” Krusader is ranked 9th while jFileProcessor is ranked 26th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great two-pane interface
Pro Folder synchronization
Pro Handles most archives. There is little difference in behaviour between an archive file and a regular folder.
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 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 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 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
Pro Multi-rename tool
Pro Searching capabilities and copying/deleting/moving in background
Pro Custom commands can be added to the menu easily
And they can use the current folder, the selected files....
Pro Easy to run commands on selected files
Find/select files in sub-folders. run touch %f or cp %f /somefolder (this is a way to copy selected files in different levels, into 1 folder, flattening out the copy).
Pro Easy rename files script
Select files. regex to match pieces of filenames, rename adding, leaving out, and reusing saved pieces.
Pro Groovy scripts to watch and act on files that get created/put into a folder.
So you can watch a folder and process files that come into it.
Pro You can make your own file associations. You can make 3 types, per suffix, per filename, per exact file.
With exact file you can create a folder of job or desktop icon names. Double-click that file to run the job since it is tied to just that specific file.
Pro Can make sftp connections
Pro You can write a script to modify your list
Your script can modify contents in the list window it is working on.
Pro Plugin scripts
Just put groovy scripts in menu-scripts folder and they will automatically run using currently selected files.
Pro Run any groovy scriptable command on a list
Run commands on your lists: grep files to find stuff, delete/copy/move files, etc.. Even copy a file to a remote host and execute it.
Pro Create and work with lists of filenames or any string
Search files and save to another file or a list window. Add or subtract one list from another.
Pro Can do count only
Just count matching search criterion.
Pro Good search
Search on modified time, file size, glob/regex name, folder depth; and/or on these and can do range.
Pro Cross-platform
Available for Linux, Windows, macOS - just needs java 7+ (written with 8).
Cons
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.
Con Interface can be overwhelming
Con Does not see attached phone files
No mtp:/ connected phone files.