When comparing Konqueror vs Double Commander, the Slant community recommends Double Commander for most people. In the question“What are the best file managers for UNIX-like systems?” Double Commander is ranked 4th while Konqueror is ranked 35th. The most important reason people chose Double Commander is:
You can use same tool in all desktop OS environments.
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 Multi-platform (Linux, Windows, MacOS X)
You can use same tool in all desktop OS environments.
Pro Source code is available (true free software)
If the developer loses interest there is at least the possibility that someone else will pick up the torch.
Pro Configurable
Lots of options allow you to configure DC the way it suits you best: Tools, Fonts, Colors, Hotkeys, Mouse, Fileviews, Plugins, Layout, Toolbars, Tabs, Icons etc.
Pro Directory Hotlist
Save shortcuts to folders. Organize them in a treeview with submenus. Define a name and sorting for each entry.
Pro Powerful tcmd-like search tool (alt+F7)
Pro tcmd-like multi-rename tool (CTRL+M)
Pro DC uses TCmd plugin API
so you can use documentation from Total Commander for writing plugins. WCX (packer), WDX (content), WFX (file system), WLX (lister).
Pro Closely follows TotalCommander UX
For instance, the 'Settings | Layout' pane is quasi-identical to TCs.
Pro Very sophisticated
Although it is lightweight and simple to use, it can do very sophisticated tasks, like copying files from directories which have a certain extension or file size or have a certain text pattern in them. Also, it's very customizable and stable.
Pro It's that good, you can replace tcmd on windows too
Pro Source code written in (Object) PASCAL
It's all a matter of perspective. I'm not for an argument about IDE's, frameworks etc, but to me that's a big plus. I think it should be a tie, it's either a pro or a con or should that be neither a pro nor a con. It just depends on context.
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 Apparently only one developer
Con Freeze after mouse double-click on directory list item
Con Much slower on Linux and Mac than on Windows
Con Source code written in Pascal language
But this does not affect users negatively. It's just programmers problem.