Overview OwnCloud is an open-source remote file access, share and content collaboration web application that your family access data from anywhere, on any device. Install Apps that let you take back control of your digital data, like contacts, calendars, notes and more. Integrated with Collabora to edit documents, slideshows and spreadsheets right in your web browser. Connect with your other storage options like Dropbox, SharePoint, SFTP, or local drives to access everything from a central location.