Lickety-Sync

Lickety-Sync syncs folders between your own devices and the people you share with, and contacts no server you did not turn on. No accounts. No tracker. Every connection is encrypted, and a folder syncs only with devices that hold one of its keys: one to read and change it, one only to read it, and one to store it without being able to read it.

Status: in development; nothing to download yet. The source and the design specifications are on GitHub.