croc is a tool that allows any two computers to simply and securely
transfer files and folders.

Features:

  * allows any two computers to transfer data (using a relay)
  * provides end-to-end encryption (using PAKE)
  * enables easy cross-platform transfers (Windows, Linux, Mac)
  * allows multiple file transfers
  * allows resuming transfers that are interrupted
  * local server or port-forwarding not needed
  * ipv6-first with ipv4 fallback

WWW: https://github.com/schollz/croc