Seafile is an enterprise file sync and share platform with high reliability and performance. It is designed as a reliable cloud file storage and collaboration platform. Seafile provides similar feature set to well-known cloud storage software, while it allows users to host the server on their own hardware. The core feature of Seafile is file sync and share. It provides client apps for most operating systems like Windows, Mac OS, Linux, iOS and Android. It also provides an user-friendly web interface for accessing files in a web browser. The community edition of Seafile server is 100% open source. Seafile Ltd also provides an Professional Edition of Seafile server for enterprise, public sector and research institutes customers. The professional edition is based on the open source community edition. It includes all features in the community edition and provides advanced features for professional use cases. As of today, Seafile has become one of the most popular open source cloud storage solutions in the world. More than 300,000 users rely on Seafile to sync, share and collaborate on files. Our customers now spread around the globe, including Germany, France, Finland, United States, Canada, Russia, Poland and China. It is used in large organizations and commercial companies like University Mainz and Kaspersky Lab.