Marklens: Markdown Reader
Read Markdown. Nothing else.
Free
Click .md, see it rendered. No editor, no fuss — just clean typography,
syntax-highlighted code, and Mermaid diagrams, all offline.
Marklens is a fast, native Markdown viewer for macOS, iPadOS, and iPhone.
Open any .md file with a click and see it rendered immediately — beautiful
typography, light and dark themes, syntax-highlighted code, and Mermaid
diagrams. No editor, no library, no friction.
HIGHLIGHTS
• Instant render — every .md opens in a clean, focused window
• 30+ language syntax highlighting via highlight.js, bundled offline
• Mermaid 11 diagrams — flowcharts, sequence, state, xy-charts and more
• GitHub-Flavored Markdown — tables, task lists, footnotes, strikethrough
• Light and dark theme matching the system appearance
• Quick Look on macOS — press Space on any .md in Finder for a rendered preview
• Export to PDF on every platform
• Pinch-to-zoom on iPadOS and iPhone, ⌘+ / ⌘− / ⌘0 on macOS
• Open files via drag-and-drop, the Share Sheet, or the Files app
MADE FOR READING
Marklens doesn't try to be a notes app or a knowledge base. It opens a
file, renders it perfectly, and gets out of the way. If you write Markdown
in another tool — VS Code, Obsidian, GitHub, your favorite text editor —
Marklens is the viewer you reach for to look at the result.
PRIVATE BY DESIGN
Marklens collects nothing. No analytics, no telemetry, no crash reports,
no network requests. Every rendering asset — Mermaid, highlight.js,
fonts — ships inside the app. Read the full privacy policy at
https://donald-jackson.github.io/marklens/privacy/
OPEN SOURCE
Marklens is MIT-licensed and developed in the open. Source, issues, and
contribution guide live at https://github.com/donald-jackson/marklens.
Ratings & Reviews
The developer, Donald Jackson, 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
- Donald Jackson
- Size
- 4.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 14.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Donald Jackson. MIT-licensed.