Pleroma

Pleroma is a self‑hostable microblogging server that implements the ActivityPub protocol, allowing it to interoperate with other Fediverse platforms such as Mastodon, GNU social, Misskey and Pixelfed. Users can create accounts on existing public instances or install their own server using the provided installation guide, and the software is released under the AGPL‑3.0 license.

The system offers several front‑end options to suit different preferences, including the official highly customizable Pleroma FE, the simple Soapbox interface, and Glitch‑lily, a fork of Mastodon’s multi‑column layout tailored for Pleroma. All development, issue tracking, and releases are managed through the project’s GitLab repository.

Pleroma targets individuals and communities that want free, open‑source communication without subscription fees, and it supports federated interaction across the broader Fediverse. Its lightweight design and multiple UI choices make it suitable for both small personal instances and larger public servers.