Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Developed by Jakob Borg
License: Open Source
Seafile is a file-hosting software system. Files are stored on a central server and can be synchronized with personal computers and mobile devices through apps. Files on the Seafile server can also be accessed directly via the servers web interface. Developed by Seafile Ltd.
License: Freemium
Syncthing offers decentralized file synchronization without a central server, making it suitable for users prioritizing privacy and direct peer-to-peer connections. In contrast, Seafile provides a more traditional centralized file management system with rich features for collaborative sharing and administration.