Compare software

MarkViewer vs MarkText: catalog facts
MarkViewer	MarkText
Free Free to download and use.	Free Free and open source under the MIT licence, funded by community sponsorship.
macOS	Windows, macOS, Linux
Native universal binary for Intel and Apple Silicon GitHub-flavored Markdown with automatic table of contents	Live in-place rendering with no preview pane and no leftover syntax characters CommonMark, GitHub Flavored Markdown and some Pandoc Markdown, plus KaTeX maths
macOS only Not open source	Development is slow, with long gaps between releases Electron, so it is heavy for a text editor
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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