Kopano Collaboration Suite

Kopano offers an intuitive collaboration platform that pushes the limits of teamwork. By uniting various disruptive technologies into a single solution, Kopano allows people to communicate across roles, departments and organizations. Kopano software is 100% open-source and self-hosted, helping your teams reach their goals while at the same time keeping full control over their data privacy. It includes chat, messaging, video conferencing, file sharing, document collaboration, email and calendaring and more.