Cyberdog was an OpenDoc-based Internet suite of applications, developed by Apple Computer for the Mac OS line of operating systems.

Cyberdog included email and news readers, a web browser and address book management components, as well as drag and drop FTP.

The members of the OpenDoc alliance were all trying to obtain traction in a market rapidly being dominated by Microsoft Office and Internet Explorer.

OpenDoc was forced to create an interoperability layer in order to allow developers to use it, and this added a great technical burden to the project.

Before long, OpenDoc was scrapped, with Steve Jobs noting that they "put a bullet through (CyberDog's) head", and most of the team was laid off in March 1997.