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MyBB vs phpBB: catalog facts
MyBB	phpBB
Free Free and open source under the LGPL-3.0 licence, supported by donations.	Free Free and open source under the GPL-2.0.
Self-hosted	Self-hosted
Large catalogue of plugins and themes Built-in template and theme editor	Mature project with a long history and large community Extension and style system for customisation
Traditional bulletin board design rather than a modern chat-style forum Needs a PHP web server you maintain yourself	Classic forum layout may feel dated next to newer discussion platforms Requires a PHP and database server to host
Self-hosted	Self-hosted
Open source	Open source
License: LGPL-3.0	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.