<b>I2P</b> (Invisible Internet Protocol) is a universal anonymous network layer. All communications over I2P are anonymous and end-to-end encrypted, participants don't reveal their real IP addresses. <b>I2P client</b> is a software used for building and using anonymous I2P networks. Such networks are commonly used for anonymous peer-to-peer applications (filesharing, cryptocurrencies) and anonymous client-server applications (websites, instant messengers, chat-servers). <b>I2P</b> allows people from all around the world to communicate and share information without restrictions. For more information about <b>I2P</b>, you can read <a href="https://en.m.wikipedia.org/wiki/I2P">article on Wikipedia</a>.