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NNTPChan (previously known as overchan) is a decentralized imageboard that uses the NNTP protocol (network-news transfer protocol) to synchronize content between many different servers. It utilizes cryptographically signed posts to perform optional/opt-in decentralized moderation.

Getting started

This is a step-by-step guide for getting up-and-running with NNTPChan as well as documentation for developers who want to either work on NNTPChan directly or use NNTPChan in their aplications with the API.

TL;DR edition:

$ sudo apt update
$ sudo apt install --no-install-recommends install imagemagick ffmpeg sox build-essential git ca-certificates postgresql postgresql-client golang
$ git clone
$ cd nntpchan
$ make
$ SRND_INSTALLER=0 ./srndv2 setup 

Bugs and issues

PLEASE report any bugs you find while building, setting-up or using NNTPChan on the GitHub issue tracker, the issue tracker on tor, the issue tracker on i2p or on the GitGud issue tracker so that the probelms can be resolved or discussed.


NNTP (confirmed working):

  • Thunderbird


  • Yukko: ncurses based nntpchan web ui reader


Need help? Join us on IRC.

  1. freenode: #nntpchan
  2. rizon: #nntpchan - Most active


  • started in mid 2013 on anonet

This is a graph of the post flow of the overchan.test newsgroup over 4 years, quite a big network.

(thnx anon who made this btw)

network topology of 4 years

source code for map generation


Like this project? Why not help by funding it? This address pays for the server that runs

Bitcoin: 15yuMzuueV8y5vPQQ39ZqQVz5Ey98DNrjE

Monero: 46thSVXSPNhJkCgUsFD9WuCjW4K41DAHGL9khni2VEqmZZhfEZVvcukCp357rfhngZdviZMaeNdj5CLqhLyeK2qZRBCyL7Q


  • Deavmi - Making the documentation beautiful.