Synapse

Synapse is the server component for communication based on Matrix, an open standard for decentralized, persistent communication. It implements the server side of the Matrix model, allowing people and organizations to run a Matrix server that follows an open approach to messaging. In this structure, communication is distributed rather than controlled by one central system, and it is persistent rather than temporary. Synapse is intended for anyone who wants to operate a server supporting the Matrix standard. Synapse can be used in place of Slack for messaging, but it differs in an important way: it is a server for Matrix, not a complete, centrally controlled messaging product. Its role is specifically to provide the server component needed for Matrix-based communication. Anyone considering it as a Slack replacement should therefore understand that Synapse implements the infrastructure side of a broader open standard rather than reproducing Slack as a single product.