Den.social is described as 'Decentralized reddit-like community, where people can post inside "Lairs" akin to subreddits, and govern each lairs via votes' and is a Social Network in the bitcoin & cryptocurrency category. There are more than 100 alternatives to Den.social, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Self-Hosted apps. The best Den.social alternative is Lemmy, which is both free and Open Source. Other great sites and apps similar to Den.social are Reddit, Minds, Hacker News and Quora.
4chan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography.
United States
Lobsters is a technology-focused link-aggregation site. The site is driven by Ruby on Rails with the source code being freely available for those seeking to create a site similar to Reddit or Hackernews.
Canada
Super User, part of Stack Exchange , is a Q&A site for computer enthusiasts that's free. Free to ask questions, free to answer questions, free to read, free to index, built with plain old HTML, no fake rot13 text on the home page, no...
United States
Slide for Reddit is a rock-solid material-designed unofficial browser for Reddit with an easy to use UI and tons of customization. Slide is ad-free, open source, and is packed with many unique features.
United States
a decent(ralised) secure gossip platform sea-slang for gossip - a scuttlebutt is basically a watercooler on a ship.
News for nerds, stuff that matters. Slashdot (aka /.) is a technology-related news and discussion site with a focus on Linux, free and open source software and information freedom and privacy issues. The software it runs on, called Slashcode, is open source.
United States
Chatpic.org is a media based platform where anyone can upload images or videos and share comments. There are channels dedicated to a variety of topics like: photography, gaming or politics. You do not need to register before participating in the community.
Unsatisfied with the few link sharing communities that were available and their proprietary, untransparent and non-secure nature, ziq made the original raddle.me (then known as raddit.me) with Wordpress, but it had a lot of limitations.
Forum(s) built with JavaScript ( with CoffeeScript ) and alternativeto.net/software/json for the database distributed by the network .
