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Directory Opus vs Q-Dir: catalog facts
Directory Opus	Q-Dir
Paid A paid licence is required after the trial.	Free Free for private use. Commercial use requires a donation licence.
Windows	Windows
Deeply configurable layouts, toolbars and scripted commands Built-in FTP, archive handling and a very strong batch rename	Four panes at once makes multi-folder sorting quick Tiny portable executable
Paid licence with no free tier The number of options is overwhelming at first	Licence is free for private use; commercial use requires a donation licence Interface is cramped and dated
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.