Mark II
A macOS app for viewing and editing Markdown files in Source and Formatted modes
Download Mark IIApp Store · Requires macOS 14 or later
Main Features
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Two Modes
Edit plain text in Source mode or rich text in Formatted mode, and switch at any time.
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Markdown
Supports headings, inline formatting, links, quotes, lists, tasks, tables, code blocks, math, Mermaid, footnotes, images, and attachments.
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CSV Tables
Edit CSV as source or as an editable table, with every field treated as literal text.
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Multiple Windows
One document per window, with native macOS window switching and management.
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Source Preservation
Preserves unknown syntax whenever possible and keeps the original source intact when safe editing is unavailable.
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Editing Tools
Includes a table of contents, find and replace, line numbers, character counts, undo and redo, and display zoom from 50% to 300%.
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Resources and Export
Keep images and attachments beside the document, and export to TXT, RTF, RTFD, PDF, and HTML.