With KeibiDrop, the other computer's folder shows up on yours as a normal folder. Open any file in it and only the parts you open come over the internet. Share 50 GB, open a 300 MB video, and about 300 MB moves.

It works with the apps you already use, because to them it's just a folder. Everything is encrypted from one computer to the other, and no copy is kept on a server.

From the table on the original page:

Opening a small part in the middle of a 1 GB file | About 16 MB came over, out of 1 GB | Server in Timisoara to a Mac on home Wi-Fi in Bucharest, through our relay, September 2026

Opening 120 photos, 9.5 MB in total | Under 8 seconds, 14 MB came over | Same link

Reading a file on the other computer | KeibiDrop 20 to 30 MB/s, 15 to 23 times faster than sshfs | Servers in Singapore and Timisoara, about 200 ms round trip, 100 MB and 1 GB files, July 2026

Full version, with the limits and the method: Open one file from a 50 GB folder without downloading it all

Source, AGPL-3.0:…