Flatboard
A Simple, Lightweight, Modern and Fast flat-file forum system written in PHP and Json.
18 Alternatives To Flatboard
Discourse
Discourse is an open source discussion platform built for the next decade of the Internet.
Flarum
Flarum is the next-generation forum software that makes online discussion fun. It’s simple, fast, and free.
Invision Community
Invision Community is a flexible, integrated set of apps for building communities on the web.
Kunena
Kunena, the communication platform for Joomla.
MyBB
MyBB is a discussion board software that runs on PHP and MySQL
PluXml
PluXml is a script helping you to create a site or a blog.
Simple Machines Forum
Simple Machines offers free open source software such as SMF, the powerful and easy to use community forum written in PHP. Start interesting discussions on your website!
Survey Monkey
Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Thredded
Open source, self-hosted forums
TinyBB
TinyBB is an open-source forum software written in PHP, MySQL, and HTML.
Vanilla
Vanilla is a free Mac app that lets you hide icons from your menu bar.
WoltLab Suite
PHP-based CMS built for forums and community building.
Wyzerr
Create surveys that feel like games.
XenForo
Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.
bbPress
bbPress is forum software with a twist from the creators of WordPress.
miniBB
miniBB is a standalone, open source program for building your own Internet forum.
vBulletin
Build a community website with the leading forum software, vBulletin 5 Connect, or in the cloud on vB Cloud!