When comparing Q-Dir (the Quad Explorer) vs WizTree, the Slant community recommends WizTree for most people. In the question“What are the best power user tools for Windows?” WizTree is ranked 16th while Q-Dir (the Quad Explorer) is ranked 48th. The most important reason people chose WizTree is:
Because it reads the master file table (MFT) directly from NTFS file system.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Highly manageable multiple windows
Every window can be separately customized. You can choose between different views from 1 to 4 windows, and every window can have multiple tabs!
Pro You can view 4 windows simultaneously
Pro You can use tabs in every window
Pro Portable
Pro Free
Pro Does not use a lot of RAM
Q-dir with 4 windows and with 4 tabs in every window uses only 39mb of RAM on Win10x64.
Pro Fast and stable
Pro Very customizable
Pro Q-Dir allows you to save folder combinations as a favourite to open any time
Up to 64 folder combinations can be saved in a favorite, since each of the four windows is equipped with tabs (ie 4 x 16 tabs 4 x Tree View plus 4 x Address Bar).
Pro Exceptionally fast for NTFS drives
Because it reads the master file table (MFT) directly from NTFS file system.
Pro Free
There is no limitation to using it.
Pro Multiple view such as tree view, tree map, extension view, file view
Unlike other similar apps, which usually only offer single view, this app offers multiple views.
Pro Handles "hard linked" files correctly - doesn't count them more than once
WizTree is faster and much more accurate than all the others as it properly handles hard linked files (doesn't count them more than once) so the total allocated size reported by WizTree will actually match the space used on the drive as reported by Windows.
Cons
Con Sometimes may have bugs
Con Needs modern UI design
Con No search
Con Does not work with Quicklook
Con Intended for NTFS only
It'll work with any other file system but with the same speed as any generic space analyzer.
