| phpBB | 4,400 | https://phpbb.com |
| XenForo | 4,051 | https://xenforo.com |
| Discourse | 3,153 | https://discourse.org |
| Mastodon | 1,575 | https://joinmastodon.org |
| vBulletin | 1,441 | https://www.vbulletin.com |
| Discuz! X | 1,143 | https://www.discuz.net |
| MyBB | 576 | https://mybb.com |
| IPB | 360 | https://invisioncommunity.com/ |
| Invision Power Board | 359 | https://invisioncommunity.com |
| Flarum | 267 | https://flarum.org/ |
| NodeBB | 182 | https://nodebb.org |
| Community | 143 | https://www.community.com |
| Vanilla | 113 | https://vanillaforums.org |
| Misskey | 106 | https://join.misskey.page/ |
| Philomena | 78 | https://github.com/derpibooru/philomena |
| Ultimate Bulletin Board | 26 | https://www.ubbcentral.com |
| FluxBB | 24 | https://fluxbb.org |
| punBB | 23 | https://punbb.informer.com |
| Reddit | 20 | https://code.reddit.com |
| Linen | 19 | https://www.linen.dev |