Bitblinder was an open source software program that allows users to share bandwidth and IP addresses in order to anonymously download torrents and browse the internet.

[4] The software was planned to provide anonymity for instant messaging and Internet Relay Chat.

Users were allowed to transfer 3 gigabytes of data on the network initially; additional traffic could be earned by setting up one's computer as a relay server,[5] or could be paid for.

[1] The 2010 review on DownloadSquad pointed out, "BitBlinder won't work without community participation: if there's no one online to help proxify torrent traffic.

[6] As of 2012, BitBlinder appears to be defunct, as its web page and software client are no longer functional.