Friendica

Ethical photo sharing platform, powered by ActivityPub federation (alternative to Instagram).

Flexible kit for private social networks.

Free, professional grade software package that allows you to set up your own online community within minutes.

Social networking software that allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests.

Delightfully simple forums. Next-generation forum software that makes online discussion fun again.

Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging.