I2P

Original author(s)	I2P Team
Initial release	2003
Stable release	2.5.2 / 15 May 2024
Repository	github.com/i2p/i2p.i2p ;
Written in	Java
Operating system	Cross-platform: Unix-like (Android, Linux, BSD, macOS), Microsoft Windows
Available in	English, Spanish; Incomplete translations: Russian, French, Romanian, German, Swedish, Italian, Portuguese, Chinese, Dutch, Polish, Hungarian, Arabic, Japanese, Estonian, Persian
Type	Anonymity application, Overlay network, mix network, garlic router, peer-to-peer
License	Free/Open Source – different licenses for different parts Public domain, BSD, GPL, MIT
Website	geti2p.net

The Invisible Internet Project (I2P) is an anonymous network layer (implemented as a mix network) that allows for censorship-resistant, peer-to-peer communication. Anonymous connections are achieved by encrypting the user's traffic (by using end-to-end encryption), and sending it through a volunteer-run network of roughly 55,000 computers distributed around the world. Given the high number of possible paths the traffic can transit, a third party watching a full connection is unlikely. The software that implements this layer is called an "I2P router", and a computer running I2P is called an "I2P node". I2P is free and open sourced, and is published under multiple licenses.^[5]

^ "I2P Project Members". geti2p.net. Archived from the original on 26 February 2019. Retrieved 22 November 2015.
^ "2.5.2 Release - Blog - I2P". Retrieved 16 May 2024.
^ I2P (project), Transifex, archived from the original on 2013-12-25, retrieved 2014-02-12.
^ "Licenses", Get involved, Get I2P, archived from the original on 2013-12-24, retrieved 2013-12-24.
^ Gallagher, Sean (2015-01-13). "Under the hood of I2P, the Tor alternative that reloaded Silk Road". Ars Technica. Archived from the original on 2019-07-12. Retrieved 2019-08-17.

[team-1] "I2P Project Members". geti2p.net. Archived from the original on 26 February 2019. Retrieved 22 November 2015.

[wikidata-e3219629aa08db82f58e09ea58274f26523b807e-v11-2] "2.5.2 Release - Blog - I2P". Retrieved 16 May 2024.

[3] I2P (project), Transifex, archived from the original on 2013-12-25, retrieved 2014-02-12.

[4] "Licenses", Get involved, Get I2P, archived from the original on 2013-12-24, retrieved 2013-12-24.

[5] Gallagher, Sean (2015-01-13). "Under the hood of I2P, the Tor alternative that reloaded Silk Road". Ars Technica. Archived from the original on 2019-07-12. Retrieved 2019-08-17.

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Original author(s)	I2P Team^[1]
Initial release	2003; 21 years ago (2003)

Stable release	2.5.2^[2] / 15 May 2024; 3 days ago (15 May 2024)

Repository	github.com/i2p/i2p.i2p
Written in	Java
Operating system	Cross-platform: Unix-like (Android, Linux, BSD, macOS), Microsoft Windows
Available in	English, Spanish Incomplete translations: Russian, French, Romanian, German, Swedish, Italian, Portuguese, Chinese, Dutch, Polish, Hungarian, Arabic, Japanese, Estonian, Persian^[3]
Type	Anonymity application, Overlay network, mix network, garlic router, peer-to-peer
License	Free/Open Source – different licenses for different parts^[4] Public domain, BSD, GPL, MIT
Website	geti2p.net