FrostWire is a free and open source Gnutella P2P application, based on the LimeWire source. Thereâ€™s no â€œproâ€ version of FrostWire, you get all the goodies for free. FrostWire can run on Windows XP, MacOSX, Linux. After a very long wait, there’s finally a new FrostWire version. This version includes torrent downloads and has a chat function built in. Please keep in mind that this piece of software can behave a bit weird sometimes, but hey … that never stopped me before!