How to Open and Read .md Files on Android (4 Methods)

You’ve downloaded a .md file on your Android phone — maybe a README from GitHub, documentation from a project, or notes from a colleague — and your phone doesn’t know how to open it. You tap on it and get the “No app found” message, or it opens in a text editor showing raw Markdown syntax with # symbols and **asterisks** everywhere.

Here’s how to open .md files properly on Android so they display as beautifully formatted documents.

What is a .md File?

A .md file is a Markdown file — a plain text document with simple formatting syntax that’s meant to be rendered into rich, formatted text. Markdown is the standard format for:

• GitHub README files — project documentation
• Technical documentation — API docs, architecture guides
• Note-taking apps — Obsidian, Notion exports, Bear
• Static site generators — Jekyll, Hugo, Astro content
• Wiki pages — GitLab wikis, GitHub wikis

When properly rendered, a .md file displays formatted headings, bold/italic text, tables, code blocks with syntax highlighting, images, links, and even diagrams.

Method 1: MerMD (Best — Full Rendering) ⭐

MerMD is a dedicated Markdown viewer that renders .md files with the highest quality of any free Android app.

How to Open .md Files with MerMD:

1. Download MerMD from mermd.tech
2. Option A — From file manager: Tap any .md file → select MerMD as the default app
3. Option B — From MerMD: Open the app → browse your device storage → tap the file
4. Option C — From cloud: Open MerMD → connect GitHub/OneDrive/Dropbox → browse to file

What Gets Rendered:

• ✅ Headings, bold, italic, strikethrough
• ✅ Tables with proper alignment
• ✅ Code blocks with syntax highlighting (20+ languages)
• ✅ Mermaid diagrams (flowcharts, sequence diagrams, Gantt charts)
• ✅ KaTeX math equations (LaTeX)
• ✅ Images (local and remote)
• ✅ Task lists (checkboxes)
• ✅ Footnotes
• ✅ Blockquotes

Bonus: Set MerMD as Default

After opening a .md file once with MerMD, Android will ask “Always use this app?” — tap Always to make MerMD your default .md file handler.

Method 2: Markor (Editor + Preview)

If you want to edit the file too, use Markor:

1. Install Markor from Google Play or F-Droid
2. Open Markor → navigate to the file
3. Tap the eye icon to switch from edit mode to rendered preview

Limitation: No Mermaid diagrams, no cloud storage.

Method 3: Chrome Browser (Quick & Dirty)

For a one-off viewing without installing an app:

1. Rename the file from .md to .txt (or long-press → Open with → Chrome)
2. Chrome displays the raw text (unformatted)

Limitation: No rendering — you see raw Markdown syntax.

Method 4: Online Renderer (Requires Internet)

1. Upload the .md file to a service like dillinger.io or paste the content
2. View the rendered output in your browser

Limitation: Requires internet, manual copy-paste, privacy concerns for sensitive docs.

Comparison of Methods

FAQ

Why can’t my phone open .md files?

Android doesn’t have a built-in Markdown renderer. You need a third-party app like MerMD or Markor to view .md files with proper formatting.

What’s the difference between viewing and editing a .md file?

Viewing shows the formatted, rendered output (headings, tables, diagrams). Editing shows the raw Markdown syntax (# symbols, ** asterisks). MerMD is optimized for viewing; Markor is optimized for editing.

Can I set a default app for .md files?

Yes — after opening a .md file with MerMD once, tap “Always” when Android asks which app to use. All future .md files will open in MerMD automatically.

What file formats does MerMD support?

MerMD opens .md, .mdx, .markdown, and .txt files.

The Bottom Line

The easiest way to open .md files on Android is to install MerMD — it renders Markdown beautifully with full Mermaid diagram, math equation, and syntax highlighting support. Install it once, set it as your default, and never worry about .md files again.

Download: mermd.tech