Matrix is an open protocol for real-time communication. It is designed to allow users with accounts at one communications service provider to communicate with users of a different service provider via online chat, Voice over IP, and Videotelephony. Developed by Matrix.org
License: Open Source
Matrix.org is primarily focused on providing a robust messaging platform with strong user identity management and integration capabilities, while ZeroNet excels in decentralized content publishing and offline accessibility. Both platforms are open-source and community-driven, but they cater to different use cases and user needs.