Frostwire is a cross-platform, open-source peer-to-peer filesharing client for the Gnutella and BitTorrent protocols. It is written in Java and is a fork of Limewire that includes all of the free LimeWire version's functionality, plus a few features of LimeWire Pro's fee based upgrades. FrostWire also provides a chatroom. This is essentially a repackaging of the official binary from frostwire.com.