Wikipedia Table (converted to markdown)
| Name | Programming language | License |
|---|---|---|
| bbPress | PHP[2] | GPL[3] |
| Beehive Forum | PHP | GPL |
| Discourse | Ruby, JavaScript | GPL |
| Discuz! | PHP | Discuz! EULA |
| eXo Platform | Java | LGPL |
| FluxBB | PHP | GPL |
| FUDforum | PHP | GPL |
| Ikonboard | Perl | Proprietary |
| Invision Power Board | PHP | Proprietary |
| MyBB | PHP | LGPL, moving to BSD in 2.0[14] |
| Phorum | PHP | Phorum License 2 (BSD like) |
| PHPWind | PHP | PHPWind EULA |
| phpBB | PHP | GPL |
| PunBB | PHP | GPL |
| Simple Machines | PHP | BSD License |
| Syndie | Java | Open source, multiple licenses |
| UBB.threads | PHP | Proprietary |
| Vanilla Forums | PHP | Proprietary/GPL[24] |
| vBulletin | PHP[27] | Proprietary[28] |
| Thredded | Ruby | MIT |
It’s working 