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  • The social networking software, Mastodon, implemented ActivityPub in version 1.6, released on 2017-09-10. It is intended that ActivityPub will offer more security for private messages than the current OStatus protocol does.
  • Hubzilla (community CMS software platform) implemented ActivityPub from version 2.8 (October 2017) with a plugin.
  • Nextcloud - Federated service for file hosting
  • PeerTube - Federated (ActivityPub) video streaming platform using P2P (BitTorrent) directly in the web browser [1]
  • Bridgy Fed - a bridge that converts between webmentions, ActivityPub and OStatus. [1]
  • distbin - a distributed pastebin [1]
  • dokieli - is a clientside editor for decentralised article publishing, annotations and social interactions [1]
  • Kroeg - Serves ActivityPub and has bridges to OStatus.[1]
  • - is a place server for the ActivityPub network.[1]
  • Pubstrate - ActivityPub / ActivityStreams focused social networking application written in Guile.[1]
  • Smilodon - an unfinished client for Pylodon server[1]
  • - is a hashtag server for the ActivityPub network.[1]
  • Pleroma - a federated social networking platform, compatible with GNU social and other OStatus implementations.[2]
  • Funkwhale - A federated music server[3]
  • Plume Project - Federated blog engine that supports ActivityPub[4]
  • Pixelfed - Image hosting software

Other lists of implementations:


See Also