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PairDropdumbpipe
Free

Free and open source under the GPL.

 Free

Free to download and use; the source is published on GitHub.

Web, Self-hosted Command line
  • No app, no account; both sides just open a page
  • Pairing codes make transfers work across different networks
  • Direct encrypted connection between two machines
  • Works across NATs without opening ports
  • Connections may fall back to a relay when direct peer-to-peer fails
  • Both devices must have the page open at the same time
  • Command-line only, with no graphical interface
  • Both machines need the tool installed
Web application, Self-hosted Downloadable app
Open source Open source
License: GPL-3.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked October 2, 2026

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