Sync-in

Sync‑in is an open‑source platform for storing, sharing, and synchronizing files across devices and users. It can be self‑hosted on any infrastructure, giving organizations full control over data residency and compliance. The system offers a web interface, desktop clients for Windows, macOS and Linux, and WebDAV access, allowing files to be reached from browsers or native applications.

Collaboration features include granular permission settings, secure sharing links with expiration and password options, and activity tracking. Real‑time editing of documents, spreadsheets and presentations is provided through integrated Collabora Online and OnlyOffice, supporting Microsoft Office and OpenDocument formats while respecting the platform’s access controls. Teams can organize work into collaborative spaces that automate creation and maintain long‑term access.

The architecture is modular and designed for scalability, supporting vertical and horizontal growth from individual to enterprise use cases. Security is built in with encryption and a detailed permission model, and the project is community‑driven, offering transparency and continuous improvement through open contributions.