When comparing QTTabBar vs One commander, the Slant community recommends QTTabBar for most people. In the question“What are the best file managers for Windows?” QTTabBar is ranked 10th while One commander is ranked 13th.
Ranked in these QuestionsQuestion Ranking
Pro Allows you to simply add tabs to File Explorer which suit the design
Pro Middle click/Ctrl+click to open new tab
Pro Plugin support
The program can be enhanced further by plugins for a variety of purposes.
Pro Good drag and drop options
Pro Preview popup buttons
Pro Ctrl+arrow keys for navigation between different tabs
Pro Ctrl+tab to go from tab to tab
Pro Simple and Fast.
Fast search and filter.
Pro Miller columns
Like Finder from macOS.
Con Possibly abandoned project
Not updated since 2019-3-24. No response from developer. Is the project dead?
Con Options menu almost unusable on some high resolution displays
Options menu almost unusable on some high resolution displays, for example Surface Pro 4 2736X1824 and 225% magnification (scaling issues). Interestingly, works ok on external display 3840X2160 with 150% magnification.
Con Context menu only based on icons