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crocson vs dumbpipe: catalog facts
crocson	dumbpipe
Free Free and open source under the ISC licence.	Free Free to download and use; the source is published on GitHub.
Windows, macOS, Linux, Android	Command line
Sends files through a relay without port forwarding Works across Android and desktop systems	Direct encrypted connection between two machines Works across NATs without opening ports
Small project with few users Both ends need croc-compatible software	Command-line only, with no graphical interface Both machines need the tool installed
Downloadable app	Downloadable app
Open source	Open source
License: ISC	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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