Markdown Editor vs Viewer on Android — Which Do You Actually Need?

You’ve decided you need a Markdown app for Android. But when you search the Play Store, you find two types of apps: editors and viewers. Which one do you actually need?

The answer depends entirely on what you’re trying to do. Let’s break it down.

What is a Markdown Editor?

A Markdown editor lets you write and create Markdown content. You type raw Markdown syntax (# Heading, **bold**, - list item) and the app helps you write faster with features like:

• Toolbar buttons for inserting formatting
• Keyboard shortcuts for common operations
• File management for organizing your documents
• Side-by-side preview showing raw text and rendered output

Popular Markdown editors for Android include Markor, iA Writer, and JotterPad.

Best for: Writers, note-takers, bloggers, and anyone creating new Markdown documents from scratch.

What is a Markdown Viewer?

A Markdown viewer (or reader) focuses on rendering and displaying Markdown files beautifully. Instead of showing raw syntax, it converts Markdown into a fully formatted document with:

• Styled headings, bold, italic — proper typography
• Tables — rendered as actual tables, not pipe characters
• Code blocks — with syntax highlighting for different languages
• Diagrams — Mermaid flowcharts, sequence diagrams rendered visually
• Math equations — KaTeX/LaTeX rendered as actual formulas

Best for: Developers reading documentation, students reviewing notes, anyone opening .md files received from others.

Side-by-Side Comparison

When You Need an Editor

Choose a Markdown editor if you:

• Write blog posts or articles in Markdown
• Take notes during meetings or lectures
• Create documentation for your projects
• Draft README files for your repositories
• Need keyboard shortcuts and toolbar buttons for formatting

When You Need a Viewer

Choose a Markdown viewer if you:

• Read documentation from GitHub, GitLab, or other sources
• Open .md files received via email, chat, or file sharing
• Need to view Mermaid diagrams (flowcharts, sequence diagrams)
• Want to read math equations rendered properly with KaTeX
• Need beautiful rendering with proper fonts, spacing, and colors
• Want to export to PDF or share formatted documents

Can One App Do Both?

Some apps try to do both, but they usually excel at one and compromise on the other. Here’s the reality:

Editors that try to preview: Apps like Markor include a preview mode, but the rendering quality is basic. Mermaid diagrams aren’t supported, code highlighting is limited, and the reading experience feels like an afterthought.

Viewers that focus on reading: Apps like MerMD prioritize rendering quality. Every element — tables, code blocks, diagrams, math equations — is rendered beautifully. The trade-off is that they don’t include a full text editor with toolbars and shortcuts.

Our Recommendation

If you primarily READ Markdown files — use MerMD. It’s purpose-built for rendering quality with:

• Native Mermaid diagram support (flowcharts, sequence, Gantt, ER)
• KaTeX math equation rendering
• Syntax highlighting for 20+ languages
• Cloud integration (GitHub, Dropbox, OneDrive, GitLab)
• Beautiful dark mode
• Export to PDF and HTML

If you primarily WRITE Markdown — use Markor or iA Writer for the actual writing, then use MerMD to preview and share the final result.

If you need both — install both! MerMD is free and takes minimal storage. Use your editor to write, and MerMD to review the rendered output before publishing.

Frequently Asked Questions

Can I edit files in MerMD?

MerMD focuses on rendering quality. For heavy editing, pair it with a dedicated editor like Markor.

Do editors support Mermaid diagrams?

Most Android Markdown editors don’t support Mermaid diagram rendering. MerMD is one of the few Android apps that renders all Mermaid diagram types natively.

Which is better for reading GitHub README files?

A Markdown viewer like MerMD is significantly better for this. It renders README files exactly like GitHub does, with proper tables, badges, code blocks, and diagrams.

Conclusion

The editor vs viewer question isn’t about which is “better” — it’s about what you need. For reading and reviewing Markdown content on Android, a dedicated viewer like MerMD delivers a dramatically better experience than an editor’s preview mode. Download MerMD free on Google Play and see the difference for yourself.