Markdown Editor & .md Reader

Markdown Editor & .md Reader is an offline Markdown editor and MD file viewer for Android. Open any .md file from your file manager, browser, email or chat app, read it with a clean formatted preview, or write notes and documentation with live preview, LaTeX math and Mermaid diagrams. Edit files right where they live, in Downloads or an Obsidian vault, without making copies. No account, no cloud, no sign-in: your files stay on your device.

OPEN AND READ .MD FILES
- Open .md and .markdown files straight from other apps with "Open with" or "Share"
- Clean preview with headings, tables, quotes, images, links and task lists
- Tap a checkbox in the preview to tick it off; the file is saved right away
- Syntax highlighting for code blocks
- LaTeX math formulas, inline and as blocks
- Mermaid diagrams: flowcharts, sequence diagrams and more
- Table of contents, find in document and reading progress
- Comfortable reading: text size, serif font, sepia or black background, text width

EDIT FILES IN PLACE
- Open a file in place and save changes straight to the original, no copy
- Link a whole folder, such as Downloads or an Obsidian vault, and see all its .md files
- Access stays after a restart

WRITE WITH A REAL MARKDOWN EDITOR
- Markdown syntax highlighting while you type
- Edit, Preview and Split view side by side
- Formatting toolbar: headings, bold, italic, quotes, links, code, lists, checkboxes
- Insert a table, an image, a code block or a horizontal line with one tap
- Lists, checkboxes and quotes continue automatically when you press Enter
- Undo and redo
- Word count and reading time
- Draft autosave: if the app closes, you can restore unsaved changes

ORGANIZE YOUR NOTES
- Folders and tags, pinned files and recent files
- Sort by date, name or size and search by name
- Select several files to share, move or delete them at once
- Trash: deleted files are kept for 30 days, with undo
- Home screen widget and app shortcuts: new note or last file in one tap

EXPORT AND SHARE
- Export to PDF and HTML
- Share files or copy the Markdown source or plain text

PRIVATE AND OFFLINE
- Works 100% offline, no account required
- Files are stored locally on your device, no cloud sync
- Light, dark and black (AMOLED) themes, five accent colors
- Interface in 65 languages

Made for students, developers, technical writers and anyone who keeps notes, README files, docs or a journal in Markdown. The app is supported by ads; one short video turns them off for 10 minutes.