Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Developed by Jakob Borg
License: Open Source
Rsync is primarily a command-line tool designed for one-time or scheduled file synchronization, focusing on efficiency and configuration flexibility, while Syncthing provides real-time, peer-to-peer synchronization with a user-friendly interface, making it more suitable for continuous file syncing across multiple devices.