Matrix: The Open Protocol for Federated Encrypted Messaging

Matrix is an open, standards-based messaging protocol, not a single app, built for federated real-time communication.

Different organizations can run their own homeservers while still interoperating, sharing room history, and exchanging encrypted messages.

Its architecture gives communities and enterprises more control than centralized chat platforms, but it also adds major protocol and operational complexity.

The ecosystem includes projects like Matrix.org Foundation, Element, Synapse, Olm, Megolm, libolm, and vodozemac.