A platform for community discussion. Free, open, simple.
https://www.discourse.org/ Should have just made a google search. Anyways. It's totally free and open source. Host on your servers
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
I used a Website Carbon Calculator on KDE websites
1 project | reddit.com/r/kde | 4 May 2022
What's the template for this forum? (ethresear.ch)
1 project | reddit.com/r/web_design | 3 May 2022
Communities Moving to Discord Has Resulted In Millions of Questions and Answers Being Lost — It Doesn’t Have To Be That Way.
1 project | reddit.com/r/programming | 25 Apr 2022
1 project | reddit.com/r/TheBibites | 25 Apr 2022
Forum/Discussion Board solution for Rails
1 project | reddit.com/r/rails | 20 Apr 2022