Open Source Forums

Discourse is an open source discussion platform built for the next decade of the Internet. A modern forum, everything's been redesigned to be easy.

Flarum is free, open-source forum software with a focus on simplicity. You can use Flarum to easily set up a discussion forum for your website. Flarum is developed openly on GitHub.

Since its creation in 2000, phpBB™ has become the most widely used Open Source forum solution. Like its predecessors, phpBB™ 3.2 “Rhea” has an easy to use administration panel and a user friendly installation process, which allows you to have a forum set up in minutes.

A non-censored social platform where users are incentivized to contribute and curate content. The users decide what is valuable by voting, and content regarded valuable is rewarded with money.

Ripledd is an entire world where you are able to create your channels and broadcast anything you want, whoever you are, no limits for you! Share: interesting news, your music, podcasts, art, pictures, videos, movies and much more...

A non-profit community site driven by its users' interests.

Simple Machines Forum — SMF in short — is a free, professional grade software package that allows you to set up your own online community within minutes.

MyBB is the free and open source, intuitive, extensible, and incredibly powerful forum software you've been looking for.

A community forum allows you to engage and retain customers, keeping them interested and up-to-date with your latest product or service.

bbPress is forum software with a twist from the creators of WordPress. Its focused on web standards, ease of use, ease of integration, and speed. bbPress will try to keep things as small and light as possible while still allowing great add-on feature possibilities.

Vanilla provides a standards-compliant, multi-lingual, theme-able and pluggablecommunity forum software that powers discussion forums on 800,000 sites.

Lainchan is a great imageboard package, actively building on it and adding a lot of features and other improvements. This imageboard's topic focused to anime, manga, politic, and technology.

TopAnswers is what Stack Overflow should be: focused on communities and knowledge sharing, not profit. We share some of the same aims:

FluxBB is a fast, light, user-friendly forum application for your website. FluxBB was designed as a lighter, faster alternative to some of the traditional feature heavy forum applications. It is easy to use and has a proven track record of stability and security making it an...

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 .

Polytoria is a free-to-play platform and website similar to Roblox. You can create levels, play levels, talk in a forum, customize your avatar and do many more activities.

Scoold is inspired by StackOverflow and implements most of its features. You can ask and answer questions, upvote and downvote posts, earn badges and reputation. Each edit creates an new revision, making it easy to follow the history of edits. Scoold is optimized for the cloud.

An alternative to Reddit and Voat. It has the original Voat culture of open expression. Most users on the site are interested in web development but mostly only chat about that in IRC.

A reddit-like site focused on privacy and free speech that is available through various anonymity networks such as TOR, I2P, LokiNet and Yggdrasil as well as the clearnet.

With a fresh new take on traditional bulletin board forum software, Storyden is a modern, secure and extensible platform for building communities.

Spiritual successor of Krautchan.

A modern, full featured and actively developed imageboard engine (similar to Futaba, Kusaba and 4chan). Based on (and compatible with) Tinyboard.

TBPChan is a self-hosted website that promotes free speech on an anonymous message board similar to 8chan. Running off of Vichan, it is based off of 8chan software.

Spirit is a modern Python based forum built on top of Django framework.