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Excalidraw vs Collaboard: catalog facts
Excalidraw	Collaboard
Freemium The editor is free and open source. Excalidraw Plus is a paid subscription.	Freemium Free to start, with paid plans and on-premises hosting options.
Web, Self-hosted	Web, Self-hosted
The sketchy style keeps diagrams feeling provisional rather than final End-to-end encrypted collaboration rooms, and self-hostable	GDPR-focused EU hosting or on-premises deployment Moderation tools for running workshops
Not built for precise technical diagrams Some team features belong to the paid Excalidraw Plus	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: MIT	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 September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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