Syncthing is an open-source application designed for decentralized file synchronization between multiple devices, ensuring user privacy and control over data. Unlike traditional cloud services, Syncthing operates without a central server, allowing users to manage their files directly between devices. It provides real-time synchronization, enabling seamless updates across computers while keeping all data secure from unauthorized access.

The application emphasizes privacy and security, with all data remaining solely on user devices. Communication is encrypted using TLS, ensuring that even if data is intercepted, it remains protected. Each device is authenticated with strong cryptographic certificates, allowing only trusted devices to connect. With an open-source model, users can review the source code and participate in the development process, making Syncthing a transparent and secure choice for file synchronization.