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OpenTalk vs BigBlueButton: catalog facts
OpenTalk	BigBlueButton
Freemium Hosted service can be tried for free; paid plans and on-premises options are listed on the…	Free Free and open source to self-host.
Web, Self-hosted	Web, Self-hosted
Hosted in German data centers with a GDPR focus Breakout rooms, whiteboards, polls and formal voting	Designed specifically for teaching and classrooms Participants join from a web browser
Aimed mainly at organisations rather than individuals Pricing details not shown on the homepage	Needs a dedicated server to self-host Less suited to general business meetings
Web application, Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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