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Peony vs Caja: catalog facts
Peony	Caja
Free Free and open source.	Free Free and open source, developed by the MATE project.
Linux	Linux
Integrated with the UKUI desktop Plugin interface for extensions	Default, well-integrated file manager for MATE Extension interface for adding features
Designed mainly for UKUI rather than other desktops Some documentation is in Chinese only	Linux only Best integrated with the MATE desktop rather than other environments
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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