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Double Commander vs Fileside: catalog facts
Double Commander	Fileside
Free Free and open source under the GPL 2.0.	Paid Paid licence with a free trial.
Windows, macOS, Linux	Windows, macOS
Two panes with a keyboard workflow built for moving files around Multi-rename tool and file comparison built in	Tiled multi-pane layouts saved per project Keyboard palette for jumping between folders
The interface is dated and theming is limited Plugin compatibility with Total Commander is partial	Paid after the trial No Linux version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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