Mastodon

A social networking platform that enables users to post short messages, follow others, and engage in public conversations, solving the problem of centralized social media by offering a decentralized, federated network. It targets individual users, communities, and organizations seeking an alternative to mainstream platforms, with a focus on privacy and user control. The service is delivered as a hosted instance on the fediverse, operated by a non-profit entity for the common good, and is open-source.