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