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MacDown 3000 vs MiaoYan: catalog facts
MacDown 3000	MiaoYan
Free Free and open source.	Free Free to download from the GitHub releases page.
macOS	macOS, iOS
Side-by-side live preview GitHub Flavored Markdown support	Native Swift app, not Electron Notes stay as plain Markdown files in your own folder
macOS only A focused editor without note organisation or sync	macOS only No WYSIWYG editing mode
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
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.