• JSON-based configuration • Inputs > Codecs > Filters > Outputs • Inputs for files, sockets, syslog, irc, gelf, irc, twitter, graphite, heroku, imap, jmx • Codecs for json, collectd, graphite, plain • Filters for dates, location, urldecode, mutate, grok, geoip • Ouputs for Elasticsearch, MQs, Nagios, Databases, and many, many more