Nextcloud is a suite of client-server software for creating file hosting services and using them.

Nextcloud is the most deployed alternative to Office365.
Nextcloud offers the most comprehensive, deeply integrated on-premises collaboration platform on the market, replacing dozens of other tools.
  • Secure file exchange within and between organizations
  • Collaborative editing of docx, xlsx and more
  • File versioning, restore and retention control
  • Commenting on files, adding notes to share links
  • Integrated chat and secure audio-video calls
  • Calendar, mail and task management tools
  • Comprehensive set of security capabilities
  • Self hosted on private servers
  • 100% open source
  • A single, integrated platform
  • Integration in infrastructure
  • Security and encryption
Nextcloud is open source – there are no limitations and you can inspect, integrate, extend and modify Nextcloud however you want.