vBulletin (vB) is an Internet forum software package written in PHP and uses a MySQL database server. Developed by Jelsoft Enterprises Limited.
License: Commercial
vBulletin is a legacy forum software known for its extensive features and customization options, making it suitable for large and established communities. In contrast, Discourse offers a modern, user-friendly experience with a focus on community engagement and real-time interactions, appealing to new and growing forums.