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Caja vs COSMIC Files: catalog facts
Caja	COSMIC Files
Free Free and open source, developed by the MATE project.	Free Free and open source, developed by System76.
Linux	Linux
Default, well-integrated file manager for MATE Extension interface for adding features	Written in Rust Built for and integrated with the COSMIC desktop
Linux only Best integrated with the MATE desktop rather than other environments	Linux only Designed around COSMIC, so less suited to other desktops
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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