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ReText vs MacDown 3000: catalog facts
ReText	MacDown 3000
Free Free and open source under the GPL-2.0 or later.	Free Free and open source.
Linux	macOS
Handles Markdown, reStructuredText, Textile and AsciiDoc Custom markup support through Python modules	Side-by-side live preview GitHub Flavored Markdown support
Fewer features than full code editors Project documentation lives mainly in the repository	macOS only A focused editor without note organisation or sync
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	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.