Flarum
Flarum is open source forum software that provides a simple place for online discussion. It is for people, groups, and communities that want a forum as their main space for conversations on the internet. The program centers on discussion and aims to make taking part enjoyable. Flarum keeps the forum experience straightforward, so users can focus on talking with one another. Flarum has a narrow purpose, which is also its main limitation: it is forum software for online discussion, not a general tool for unrelated work. People who need something beyond a forum will need to decide whether that focus fits their plans. For those who specifically want an open source forum, Flarum offers software built around discussion, simplicity, and an enjoyable forum experience.