SyncKit

SyncKit is a modern self-hosted synchronization toolkit that lets users keep files, settings, and real-time state in sync across multiple devices securely and without relying on third-party cloud services. It provides bidirectional syncing, conflict detection and resolution, and selective folder sync, making it suitable for personal data, team projects, or distributed machines. The system operates over encrypted channels and supports peer-to-peer connections as well as optional relay servers for users behind NAT or firewalls. It includes version history and rollback capabilities so users can recover previous versions of files or undo unintended changes. Synckit’s synchronization engine efficiently handles differential syncing — transferring only changed blocks rather than entire files — which reduces bandwidth usage and accelerates sync throughput.