Syncthing
syncthing.netContinuous file synchronization between your computers, privately and securely.
Utilitiesfile-syncopen-sourcepeer-to-peerprivacyself-hostedcross-platformdecentralized

About
Syncthing is an open-source, continuous file synchronization tool that keeps files in sync across two or more computers in real time. It is decentralized and peer-to-peer, meaning no data is stored on third-party servers. Users retain full control over where their data is stored and how it is transmitted.
Problem
Users want to sync files across multiple computers without trusting their data to third-party cloud storage providers.
For
individuals and developers who want private, self-hosted file synchronization across multiple devices
How it works
Syncthing runs on each device and synchronizes files directly between computers in real time using a secure, decentralized peer-to-peer protocol.
Business model
open-source
Status
launched
Company
Kastelo