Matrix
matrix.orgAn open network for secure, decentralised communication
Communicationopen-protocoldecentralizedsecure-messagingfederatedopen-sourceself-hostablereal-time-chat

About
Matrix is an open, decentralized communication protocol that enables secure messaging across different providers and clients, similar to how email works across services. It supports instant messaging, communities, and rich application development through a federated server ecosystem. The Matrix.org Foundation maintains the open specification and operates a free public homeserver anyone can register on.
Problem
Centralized messaging platforms lock users into proprietary ecosystems with limited interoperability and privacy control.
For
individuals, communities, developers, and organizations seeking secure and decentralized communication
How it works
Matrix federates across independently operated servers so users on different providers can communicate seamlessly, using any compatible client app.
Business model
open-source
Status
launched
Company
The Matrix.org Foundation