Forem is open source software for building modern and independent communities for your developers, peers, customers, users. Forem is already powering communities that serve over 10 million monthly unique visitors.
United States
FUDforum (Fast Uncompromising Discussion Forum) is a free and open source web discussion forum. FUDforum combines an extensive feature set while maintaining the ability to generate forum web pages extremely fast.
With the InfoRapid KnowledgeBase Builder, you can create mind maps and flowcharts of almost unlimited size. This allows you to organize all your ideas and knowledge with cross-linked chart. Create complex process charts and decision trees.
Germany
EU
ForumWP is the best forum plugin for WordPress. Use ForumWP to add a forum to your website and create an online community.
IkoBB is a new open source bulletin board which aim it is to fullfill the wishes and dreams of it's community. New technologies like emojis, identicons and responsive design are the core of this bulletin board.
AsmBB is high performance web forum software, written entirely in assembly language. It is very lightweight, but provides decent set of features and ultimate performance.
Phorum is open source forum software with a penchant for speed. Phorum's very flexible hook and module system can satisfy every web master's needs.
Feature-rich and lightning fast forums. Works standalone or as a Rails engine. Markdown by default, with plugins for code highlighting, KaTeX math, and BBCode. No JavaScript required. Easy deployment on Heroku or with Ansible.
uCoz is a free website-builder that includes hosting and a website management system. uCoz works according to the principles of Web 2.0 and allows creating of the most complicated projects with extraordinary simplicity and speed.
Russia
miniBB is a standalone, open source program for building your own Internet forum. If you want a lite, simple and stable message board attached to your existing website at the very high integration level, which may include the full customization of the layout to the look of your...
Bulletin Board is new modern forum software that allow you build a professional forum
