# Markdown Viewer Editor > Write Markdown on Android—preview, math, diagrams, export & sync. Canonical page: [https://chrome-stats.com/d/cloud.iothub.markdown\_viewer\_editor](https://chrome-stats.com/d/cloud.iothub.markdown_viewer_editor) ## Overview - **ID:** `cloud.iothub.markdown_viewer_editor` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** OpenIoTHub - **Category:** PRODUCTIVITY - **Downloads:** 2,152 - **Version:** 1.0.9 - **Last updated:** 2026-08-02 - **First published:** 2026-04-27 - **Publisher country:** CN - **Size:** 29 MB - **Data as of:** 2026-09-15 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=cloud.iothub.markdown_viewer_editor) - **Website:** [https://iothub.cloud](https://iothub.cloud/) - **Privacy policy:** [https://docs.iothub.cloud/privacyPolicy/](https://docs.iothub.cloud/privacyPolicy/) ## Description Markdown Viewer Editor — a powerful Markdown editor and viewer for Android. Write notes, documentation, and long-form content with a clean, Typora-inspired workflow: switch between WYSIWYG editing, source mode with line numbers, live preview, or a split view—all in one app.

CORE EDITING
• Rich Markdown editing with a formatting toolbar (headings, lists, tables, code, links, images, and more)
• Four modes: WYSIWYG, Source, Preview, and Split
• Focus mode and typewriter mode for distraction-free writing
• Find & replace with regex support; search across open documents
• Outline panel for quick navigation by headings

MARKDOWN & RICH CONTENT
• Full Markdown support including fenced code blocks with syntax highlighting
• Table of contents via [TOC]
• YAML front matter rendered as metadata
• GitHub-style alerts (NOTE, TIP, WARNING, and more)
• Footnotes, highlights, superscript/subscript
• KaTeX math: inline $...$ and block $$...$$
• Mermaid diagrams (flowcharts, sequence diagrams, Gantt, and more)
• Useful HTML embeds in preview (video, audio, details, and more)
• Copy code blocks to clipboard with one tap

FILES & WORKSPACE
• Open, save, and save-as; multi-tab editing
• Folder tree, flat file list, sorting, and quick open (fuzzy file search)
• Recent files on the welcome screen
• Auto-save with debounce (configurable); draft recovery after crashes
• External file change detection with reload prompts

IMAGES & MEDIA
• Paste images from clipboard; drag-and-drop where supported
• Relative/absolute image paths; configurable image storage folder
• Optional image upload via configurable shell command (e.g., PicGo-style workflows)

EXPORT & IMPORT
• Export to HTML (with GitHub-style styling options), PDF, Word (.docx), LaTeX (.tex), EPUB, and long PNG
• Import Word (.docx) to Markdown (basic conversion)
• Custom export shell templates; save Mermaid renders as PNG

VERSION CONTROL & SYNC
• Git history viewer for the current file
• Optional Git auto-sync on save (commit, pull --rebase, push) with status in the UI

OPTIONAL WRITING ASSISTANT (BYO API)
• Optional panel for compatible HTTP “chat completions” style endpoints—bring your own base URL, model name, and credentials. No built-in vendor; fully user-configured. Streaming responses supported for continue, summarize, translate, polish, explain, and custom prompts.

LOOK & FEEL
• Twelve built-in themes (light and dark), system or manual theme
• Custom preview CSS; adjustable font size and zoom
• Fullscreen; English/Chinese UI in settings

Perfect for developers, students, technical writers, and anyone who wants a serious Markdown app on Android—offline-friendly editing with optional sync and export when you need it.

Keywords users search for: markdown editor, markdown notes, md file editor, technical writing, documentation, KaTeX math, Mermaid diagram, PDF export, EPUB export, split markdown editor, dark mode markdown, git markdown. ## Rankings - #932,538 — Overall ## Permissions and access ### Permissions - `android.permission.INTERNET` - `cloud.iothub.markdown_viewer_editor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.android.vending.CHECK_LICENSE` ## Similar extensions and apps - [MD File Editor/Viewer](https://chrome-stats.com/d/com.markdowneditor) — 579 users - [Markdown Reader & Editor](https://chrome-stats.com/d/com.zoryatechstudio.markdownreader) — 55 users - [Markdown Editor & Viewer](https://chrome-stats.com/d/com.doun.markdown) — 84 users - [Markdown Editor Viewer](https://chrome-stats.com/d/com.markdowneditorviewer.app) — 30 users - [Markdown Reader & Editor](https://chrome-stats.com/d/com.mdreader.md_reader) — 636 users - [Markdown Editor & MD Viewer](https://chrome-stats.com/d/com.cosmovex.mdvedit) — 23,328 users, 3.82 / 5 - [Markdown Editor Viewer MD File](https://chrome-stats.com/d/com.eltacrew.mdviewer) — 378 users - [Awesome Markdown Editor](https://chrome-stats.com/d/com.awesomemarkdownapp) — 80 users - [Quick Markdown - MD Editor](https://chrome-stats.com/d/com.codeshift.bestmarkdown) — 170 users - [Markdown Editor](https://chrome-stats.com/d/ai.hyunju.markdown) — 5 users - [Markdown Preview](https://chrome-stats.com/d/com.karma.markdown_preview) — 132 users - [Markdown Writer & Preview](https://chrome-stats.com/d/com.dangundad.simplemarkdown) — 221 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/cloud.iothub.markdown_viewer_editor)