Matrix: The Open Protocol for Federated Encrypted Messaging

Signal works well when everyone involved trusts the same company. Matrix is built for the case where they don't — where organizations want to run their own servers, where communities need to control their own infrastructure, and where interoperability across organizations matters more than simplicity. Matrix is an open standard for real-time communication. Not an app, not a company's product — a protocol specification, maintained by the Matrix.org Foundation, that anyone can implement. The most...