Board3
Board3 is a phpBB extension enabling users to add a portal with several blocks to the front page of phpBB forums.
14 Alternatives To Board3
Directly
Directly provides on-demand customer service apps.
Discourse
Discourse is an open source discussion platform built for the next decade of the Internet.
FUDforum
FUDforum is a free and open source Internet forum software
Flarum
Flarum is the next-generation forum software that makes online discussion fun. It’s simple, fast, and free.
Forumbee
Forumbee offers community forums for discussions, feedback and Q&A.
Mightybell
Build a community and a business on mobile
MyBB
MyBB is a discussion board software that runs on PHP and MySQL
SocialGO
SocialGO enables users to create custom social networking websites.
Vanilla Forums
Build an engaging community forum using Vanilla’s modern cloud forum software.
XenForo
Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.
Zimbra Communities
Communities at Zimbra.
esoTalk
esoTalk is a free, open-source forum software package built with PHP and MySQL.
jforum
jforum is a Java-based discussion board software.