Private company

Sharman Networks

Defunct peer-to-peer file sharing application

Kazaa Media Desktop ( ka-ZAH; once stylized as "KaZaA", but later usually written "Kazaa") was a peer-to-peer file sharing application using the FastTrack protocol licensed by Joltid Ltd. and operated as Kazaa by Sharman Networks. Kazaa was subsequently under license as a legal music subscription service by Atrinsic, Inc., which lasted until August 2012. Kazaa Media Desktop was commonly used to exchange MP3 music files and other file types, such as videos, applications, and documents over the Internet.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2002Founded1

Kazaa Media Desktop ( ka-ZAH; once stylized as "KaZaA", but later usually written "Kazaa") was a peer-to-peer file sharing application using the FastTrack protocol licensed by Joltid Ltd. and operated as Kazaa by Sharman Networks. Kazaa was subsequently under license as a legal music subscription service by Atrinsic, Inc., which lasted until August 2012.2

The story

Kazaa and FastTrack were originally created and developed by Estonian programmers from BlueMoon Interactive including Jaan Tallinn and sold to Swedish entrepreneur Niklas Zennström and Danish programmer Janus Friis (who were later to create Skype and later still Joost and Rdio). Kazaa was introduced by the Dutch company Consumer Empowerment in March 2001, near the end of the first generation of P2P networks typified by the shutdown of Napster in July 2001. Skype itself was based on Kazaa's P2P backend, which allowed users to make a call by directly connecting them with each other.

Initially, some users of the Kazaa network were users of the Morpheus client program, formerly made available by MusicCity. Eventually, the official Kazaa client became more widespread. In February 2002, when Morpheus developers failed to pay license fees, Kazaa developers used an automatic update ability to shut out Morpheus clients by changing the protocol. Morpheus later became a client of the gnutella network.

From Wikipedia’s article on Sharman Networks, shared under CC BY-SA 4.0.3

Products and brands

  • Kazaa

Listed on Wikidata.1

Timeline

  1. 2002Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3