Friendica is a decentralized, peer-to-peer social network. Users may select one of the 16 recommended public servers or opt to self-host a server on hardware they control. Much like email, it's possible to "friend" users with accounts on different servers. Within Friendica itself, users will find familiar social network features such as public posts, direct messages, hashtags, photo albums, likes, dislikes, and comments. A number of connectors are also available, which can integrate services on other platforms into the Friendica interface. For example, users may incorporate contacts from Twitter, Diaspora, Pump.io, and StatusNet in their feed. Friendica can also be used as a publishing platform to post content on WordPress and Tumblr. Each item posted on Friendica has its own customizable access list that determines who can see it. Content may be posted with an expiration date, after which it will be automatically deleted. Friendica users may also download a complete set of their account data, even moving from one server to another if they so choose. Friendica can be used from any modern browser. Users interested in self-hosting may download the AGPL-licensed server software from the Friendica website.