i2pd (I2P Daemon) is a full-featured C++ implementation of I2P client.

I2P (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.

I2P client 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).

I2P allows people from all around the world to communicate and share information without restrictions.

i2pd is licensed under the 3-clause BSD license, binary packages are available for Debian, Ubuntu, OS X, FreeBSD, Android and Windows.

View release on GitHub

Changelog for i2pd version 2.21:


  • NTCP2 ipv6 incoming connections
  • Support android api > 26
  • Show total number of destination's outgoing tags in the web console


  • Use EdDSA, x25519 and SipHash from openssl 1.1.1 if available


  • Bandwidth classes 'P' and 'X' without 'O'
  • Update own RouterInfo if no SSU
  • Fixed NTCP address disappears if NTCP2 enabled

Posted at by PurpleI2P Team     Tags: i2p, i2pd, release