Seafile is an open-source file synchronization and sharing software, known for its particularly high-performance and reliable synchronization engine. Beyond simple storage, it allows you to organize files using custom properties and view them in different layouts (table, gallery, kanban, card).

For sharing, Seafile offers fine-grained permission control (read/write, read-only, preview), subfolder permissions, and password-protected sharing links with expiration. Security is a key strength of the product, featuring advanced encryption and backup technologies, file version history, and comprehensive audit logs for compliance.

For collaboration, Seafile includes SeaDoc (real-time co-editing with a review workflow), a collaborative wiki to organize team knowledge, as well as online viewing and editing of many formats. It is a solution tailored for teams that need fast, secure, and structured file sharing.