Seafile

Seafile is a high-performance, open-source file synchronization and sharing platform designed for reliability and speed. It uses a unique library-based storage model with client-side encryption, making it one of the most secure self-hosted Google Drive alternatives available. Files are organized into libraries that can be synced independently and selectively.

Seafile excels in performance and scalability, making it well-suited for organizations with large numbers of users and files. It provides desktop sync clients for Windows, macOS, and Linux, along with mobile apps. The platform includes file versioning, trash recovery, shared links with passwords and expiry dates, and fine-grained permission management. It also integrates with ONLYOFFICE for online document editing.

With over 14,000 GitHub stars, Seafile is widely deployed by universities, enterprises, and government organizations. It offers a Community Edition (open-source, AGP-3.0) and a Pro Edition with additional features. It can be deployed on Linux servers or via Docker, and is a strong choice for teams that prioritize performance, reliability, and data sovereignty over Google Drive.