Compare software

MacMD Viewer vs MarkEdit: catalog facts
MacMD Viewer	MarkEdit
Paid One-time purchase of $19.99 with a 14-day money-back guarantee.	Free Free and open source under the MIT licence.
macOS	macOS
Quick Look previews of Markdown in Finder Renders Mermaid diagrams and tables	About 4 MB installed and fast on very large files Strict GFM support with no invented syntax
A viewer only, not an editor Requires macOS 14 or later	macOS only Focused on Markdown rather than general note organisation
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
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.