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Lorien vs OpenBoard: catalog facts
Lorien	OpenBoard
Free Free and open source under the MIT licence.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Linux	Windows, macOS, Linux
Infinite canvas for freeform sketching and notes Stroke-based storage keeps save files small	Provides classroom-oriented drawing and presentation tools.
Not a bitmap painting program Deliberately limited feature set	Official Linux packages target Debian, with other distributions relying on community builds.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	Not stated if an account is needed
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 September 22, 2026

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