I2P
I2P 0.9.41 for Windows
I2P Team
Accessible and powerful web-based anonymous network that allows identity-sensitive applications to communicate in a safe environment
I2P is a handy tool that enables apps to securely chat. The network itself is strictly message based , but there is a library available to allow reliable streaming communication on top of it. I2P is an application that allows users to communicate via IP address. All communication is end to end encrypted (in total there are four layers of encryption used when sending a message), and even the end points ("destinations") are cryptographic identifiers (essentially a pair of public keys). To hide the sent messages, each client application has their I2P "router" build a few inbound and outbound "tunnels" - a sequence of peers that pass messages in one direction (to and from the client, respectively). In turn, when a client wants to send a message to another client, the client passes that message out one of their outbound tunnels targeting one of the other client's inbound tunnels, eventually reaching the destination. Every participant in the network chooses the length of these tunnels, and in doing so, makes a tradeoff between anonymity, latency, and throughput according to their own needs. The result is that the number of peers relaying each end to end message is the absolute minimum necessary to meet both the sender's and the receiver's threat model.

Software Summary:

You can run I2P on Windows operating systems. I2P is a software product developed by I2P Team and it is listed in the category. I2P is a free software product and it is fully functional for an unlimited time although there may be other versions of this software product.

Alternatives in on Windows