| phpBB | 3,893 | https://phpbb.com |
| XenForo | 3,859 | https://xenforo.com |
| Discourse | 3,142 | https://discourse.org |
| Mastodon | 1,570 | https://joinmastodon.org |
| vBulletin | 1,310 | https://www.vbulletin.com |
| Discuz! X | 1,015 | https://www.discuz.net |
| MyBB | 524 | https://mybb.com |
| IPB | 340 | https://invisioncommunity.com/ |
| Invision Power Board | 339 | https://invisioncommunity.com |
| Flarum | 265 | https://flarum.org/ |
| NodeBB | 178 | https://nodebb.org |
| Community | 143 | https://www.community.com |
| Vanilla | 112 | https://vanillaforums.org |
| Misskey | 105 | https://join.misskey.page/ |
| Philomena | 78 | https://github.com/derpibooru/philomena |
| FluxBB | 24 | https://fluxbb.org |
| punBB | 23 | https://punbb.informer.com |
| Ultimate Bulletin Board | 23 | https://www.ubbcentral.com |
| Reddit | 20 | https://code.reddit.com |
| Linen | 19 | https://www.linen.dev |