Markdown Doc King
Markdown, TXT & code editor
$0.99 · In‑App Purchases
Preview formulas, tables, and images with ease. Keep Markdown, TXT, and code documents tidy with folders and tags.
Markdown Doc King is a local-first text-file reader and editor for iPhone, iPad, and Mac. Markdown preview renders tables, task lists, footnotes, syntax-highlighted code, math formulas, Mermaid diagrams, and document images.
TXT, MDX, JSON, CSV, XML, YAML, TOML, HTML, SVG, RTF, LaTeX, reStructuredText, AsciiDoc, Org, Fountain, configuration files, and common code files can be opened and edited as text. Switch between edit, Markdown reading preview, and split modes. Drag or choose supported files to import a copy into the library.
Organize documents with folders, tags, search, pinning, and trash recovery. Start faster with 30 built-in templates localized in six languages. Documents are stored locally by default, and remote images are loaded only after your approval.
- Advanced Markdown preview for GFM, math, Mermaid, footnotes, code, and images
- Open and edit common text, data, markup, configuration, and code formats as text
- Edit, Markdown reading preview, and split modes
- Drag-and-drop copy import, file import, and export
- Folders, search, pin, duplicate, and move
- Built-in templates for work, study, writing, code, and configuration files
- Word count, characters, line count, reading time, and structure inspector
- Localized in Simplified Chinese, Traditional Chinese, English, Japanese, Korean, and French
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed blank or incomplete Markdown previews and improved rendering speed and stability. Refined reading, editing, and split-view layouts, with better rendering for images, math, Mermaid diagrams, and common text formats.
The developer, lecoo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Beijing Sommerfeld Technology Co., Ltd.
- Size
- 14.5 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 5 more
- English, French, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Premium $0.99
- Copyright
- © 2026 Beijing Sommerfeld Technology Co., Ltd.