FreshRSS is a self-hosted RSS feed aggregator such as Leed or Kriss Feed.

It is at the same time lightweight, easy to work with, powerful and customizable.

It is a multi-user application with an anonymous reading mode. It supports PubSubHubbub for instant notifications from compatible Web sites. There is an API for (mobile) clients, and a Command-Line Interface. Finally, it supports extensions for further tuning.