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Denote vs Markdown Oxide: catalog facts
Denote	Markdown Oxide
Free Free and available from GNU ELPA.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux	Windows, Command line
Plain-text notes with predictable file names No database or lock-in	Works inside the editor you already use Notes stay as plain Markdown files
Requires Emacs and some familiarity with it No mobile app	Requires an editor with LSP support and some setup No standalone interface of its own
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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