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OpenBoard vs Excalidraw: catalog facts
OpenBoard	Excalidraw
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium The editor is free and open source. Excalidraw Plus is a paid subscription.
Windows, macOS, Linux	Web, Self-hosted
Provides classroom-oriented drawing and presentation tools.	The sketchy style keeps diagrams feeling provisional rather than final End-to-end encrypted collaboration rooms, and self-hostable
Official Linux packages target Debian, with other distributions relying on community builds.	Not built for precise technical diagrams Some team features belong to the paid Excalidraw Plus
Downloadable app	Web application, Self-hosted
Open source	Open source
License: GPL-3.0	License: MIT
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 September 22, 2026

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