When comparing Krusader vs Insight, the Slant community recommends Krusader for most people. In the question“What are the best GUI file managers for UNIX-like systems?” Krusader is ranked 7th while Insight is ranked 15th.
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 Full ZFS support
It has full ZFS support including snapshots.
Pro BSD 3-Clause
Its written under a real open license without copyleft.
Pro No toolkits
It does not use freedesktop toolkits like polkit or dbus. It also does not use toolkits from other desktops like GNOME(GTK, ATK, GLIB, GIO etc.) or KDE(KF5/KIO).
Pro Based on Qt
As Qt is a real multi-platform toolkit that is not developed for one desktop and platform.
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
