Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.

Misago is fully featured modern forum application that is fast, scalable and responsive.

The Laravel.io Community Portal.

The best Rails forums engine ever.

Askbot is a Django/Python Q&A forum. **Contributors README**: https://github.com/ASKBOT/askbot-devel#how-to-contribute. Commercial hosting of Askbot and support are available at https://askbot.com

A Stack Overflow clone for teams (self-hosted or hosted)

A curated list of everything related to anime.

A Django forum engine for building powerful community driven websites.

a forums system based on flask

All-in-one chat and forums for communities.

【已下线】https://discuss.kotliner.cn 的第一个实验版本，尝试使用Kotlin编写构建的 Kotlin China 论坛，etcd+自研tpc协议RPC

New to Open Source Projects? Contribute to your very first open source project in this beginner-friendly code repository 👨‍💻!

A forum application running on ASP.NET Core, available in six languages.

A collection of useful links for Pentesters

A Discuz X android app

Chrome extension that adds to your browsing experience by showing you relevant discussions about your current web page from Hacker News and Reddit.

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

A Python library for the Discourse API

My modification of FluxBB

BYCEPS is a self-hosted web platform to run LAN parties. Multiple brands, multiple sites, advanced ticketing, seating, native discussion board and shop, intranet mode, etc.