When comparing Konqueror vs Krusader, 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 Konqueror is ranked 35th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Amazing file manager integration
Konqueror can also work as a file manager and it does a great job at that. You can view both local or remote files (through FTP, SSH, SFTP, and Samba protocol).
Pro Low footprint in KDE
Konqueror usually has a low footprint when used in KDE because most of the resources needed are already loaded. This makes the startup time and general loading times between commands very fast compared to other browsers in KDE.
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....
Cons
Con Lacks incognito/private mode
Konqueror lacks the option to browse the web in private mode, which is used when you don't want to leave any search history or avoid saving any cookies or cached data.
Con No large extension support
Konqueror is unable to tap into the large collection of Chrome extensions like many other browsers do. So the options to extend Konqueror's functionality are pretty limited.
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.