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Beaver Notes vs Marknote: catalog facts
Beaver Notes	Marknote
Free Free and open source under the MIT licence, supported by sponsors.	Free Free and open source under the GPL-2.0-or-later licence.
macOS	Windows, macOS, Linux
Notes stay on your device with no account No telemetry or AI features	Notes stored as plain Markdown files you own Rich text editing with an optional source mode
No built-in cloud sync; you arrange syncing yourself Mobile app still in beta	No built-in sync between devices Fewer features than larger knowledge-base apps
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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