OpenMark: Markdown Viewer

OpenMark: Markdown Viewer

Native editor, Mermaid & LaTeX

0 ratings
7 reviews
#51 in paid Developer Tools
📊 Productivity
🛠️ Developer Tools
$9.99

Details

Released
March 2, 2026
Updated
October 28, 2026

Features

OpenMark: Markdown Viewer screenshot #1 for iPhone
OpenMark: Markdown Viewer screenshot #2 for iPhone
OpenMark: Markdown Viewer screenshot #3 for iPhone
OpenMark: Markdown Viewer screenshot #4 for iPhone
OpenMark: Markdown Viewer screenshot #5 for iPhone
OpenMark: Markdown Viewer screenshot #6 for iPhone
iphone
ipad
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About

View and render markdown files with advanced features like Mermaid diagrams and LaTeX math. Supports various themes, code highlighting, and offline access. Ideal for developers and writers working with markdown on iOS devices.

✓Mermaid diagram rendering
✓LaTeX math support
✓Code block highlighting
✓GitHub-style alerts
✓Interactive checkboxes
✓Offline functionality
✓Multiple themes
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What's New in OpenMark

1.4.1

October 28, 2026

• Markdown files from Google Drive are no longer grayed out in the file picker • Math with subscripts and matrices now renders correctly • Wiki-style [[links]] and GitHub-style alerts render in your documents • Reading time in Document Info • Sharing fixes — errors are reported instead of failing silently • Security update to the bundled math and diagram libraries

More

Charts

Top Paid

📉 51-3

Developer Tools

This app dropped -3 positions in Developer Tools chart.

Last updated on November 8, 2026.

User reviews

Constantly Crashing

When it works, it works wonderfully. But lately I cannot open .md files without the app crashing. Often times I can’t even get it to work at all.

Just what I needed

This app is great, it is a terrific Markdown renderer and editor. I use a monospace font for this editor and it would be great if I could specify a Document mode font different from Editor mode.

FINALLY

This is what I’ve been looking for. Simple, native, renders nicely, no bloated features I don’t care about. The ONLY thing I’d like to see is in-line editing and rendering in the same view.

Quick & Lightweight

Beautiful markdown app. Lighting fast with new modern MacOS features like QuickLook built right in. Love the formatting - just works !

Syntax Highlighting

The app is nice and feel native, but for a PAID app not having syntax highlighting for code blocks is crazy…

Developer apps

FAQ

What is OpenMark?

OpenMark is a markdown viewer for iPhone and iPad. It allows you to render markdown files with advanced features like Mermaid diagrams, LaTeX math, and code highlighting. It is designed to be a companion to the Mac version or a standalone reader.

Does OpenMark support offline viewing?

Yes, OpenMark works completely offline. No internet connection is required to view your markdown files, making it convenient for use anywhere.

What devices does OpenMark support?

OpenMark is available for iPhone and iPad. It is also available on Mac, offering a consistent experience across Apple devices.

How much does OpenMark cost?

OpenMark is a paid application, priced at $9.99. This one-time purchase grants you access to all its features.

Can OpenMark render Mermaid diagrams and LaTeX math?

Yes, OpenMark offers full support for rendering Mermaid diagrams for flowcharts and sequence diagrams, as well as KaTeX rendering for mathematical equations and matrices.

How often is OpenMark updated?

The latest version of OpenMark is 1.4.1, last updated on October 28, 2026. Updates typically include new features, bug fixes, and performance improvements.

Does OpenMark have ads?

No, OpenMark does not contain advertisements. As a paid application, it provides an ad-free experience for its users.

Can I open files from cloud services with OpenMark?

Yes, OpenMark can open files directly from cloud services such as iCloud Drive, Google Drive, and Dropbox, as well as the native Files app.