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Markdown Monster vs MacDown 3000: catalog facts
Markdown Monster	MacDown 3000
Paid Commercial software with a free trial available.	Free Free and open source.
Windows	macOS
Synced live preview that follows the cursor and scroll position Two-way table editor and image paste from the clipboard	Side-by-side live preview GitHub Flavored Markdown support
Windows only Paid licence after the trial	macOS only A focused editor without note organisation or sync
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is 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.