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WBO vs Collaboard: catalog facts
WBO	Collaboard
Free Free and open source under the AGPL-3.0 licence.	Freemium Free to start, with paid plans and on-premises hosting options.
Web, Self-hosted	Web, Self-hosted
Real-time drawing for many simultaneous users Board state is persisted automatically	GDPR-focused EU hosting or on-premises deployment Moderation tools for running workshops
Freehand whiteboard rather than a structured diagram editor Self-hosting needs a server with Docker or Node.js	Closed source Self-hosting is aimed at organisations rather than individuals
Web application, Self-hosted	Web application, Self-hosted, Hosted service
Open source	Closed source
License: AGPL-3.0	License not stated
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.