The best open source News Reader alternative to Reddit is Lemmy. If that doesn't suit you, our users have ranked more than 100 alternatives to Reddit and four of them are open source News Readers so hopefully you can find a suitable replacement. Other interesting open source News Reader alternatives to Reddit are Discuit, Old Pluto and Brutalinks.
Lemmy is similar to sites like Reddit, Lobste.rs, or Hacker News: you subscribe to forums you're interested in, post links and discussions, then vote, and comment on them. Behind the scenes, it is very different; anyone can easily run a server, and all these servers are...
Discuit is a centralised content aggregation and discussion platform. Users submit links to content or text posts, alongside a title, to various communities. Users of those communities then vote those link up or down by other members.
It is similar to reddit but it is open source and has less spam and is much less commercial than reddit and Lemmy is private and modarated