Markdown Viewer

Markdown Viewer

Markdown to perfect Word in one click — Mermaid, Vega, drawio, Canvas, Infographic, Graphviz, LaTeX (editable), code highlighting, local processing

Completely Free · 29 Professional Themes · 28 Languages Support

🚀 Install Now (Choose Your Platform):

• Chrome / Chromium: https://chromewebstore.google.com/detail/markdown-viewer/jekhhoflgcfoikceikgeenibinpojaoi
• Firefox: https://addons.mozilla.org/firefox/addon/markdown-viewer-extension/
• VS Code: https://marketplace.visualstudio.com/items?itemName=xicilion.markdown-viewer-extension · Open VSX
• Mobile (iOS/Android): See Mobile App

You love writing in Markdown — clean, efficient, version control friendly. But eventually, you always need a Word document.

The old nightmare:

😫 Manual screenshot flowcharts · Copy-paste formulas become messy · Format code by hand · Adjust tables cell by cell · Spend another 30 minutes tweaking fonts, spacing, and colors after export

One document: 1 hour writing, 2 hours formatting.

Now it takes just 1 second.

Click to download and get a perfect Word document:

• ✅ Mermaid diagrams → High-resolution images
• ✅ Vega/Vega-Lite data charts → High-resolution images
• ✅ drawio diagrams → High-resolution images
• ✅ Canvas diagrams → High-resolution images
• ✅ Infographic charts → High-resolution images
• ✅ Graphviz DOT graphs → High-resolution images
• ✅ LaTeX formulas → Word editable equations
• ✅ Auto syntax highlighting (100+ languages)
• ✅ 29 professional themes with one click
• ✅ Completely free, local processing

Spend time on writing, not on formatting.

🌍 Available Platforms

Markdown Viewer is not just a Chrome extension anymore — it's a unified rendering + export engine shipped across multiple platforms.

See the full feature matrix: docs/platforms/platform-comparison.md

💫 See It in Action

Technical Documentation: 15 Flowcharts, 2 Hours → 5 Minutes

Before: draw.io diagram → Export PNG → Insert into Word → Resize → Repeat 15 times = 2 hours

Now: Write Mermaid code → Click download = 5 minutes

System Architecture

```mermaid graph TB A[User] --> B[Load Balancer] B --> C[Server 1] B --> D[Server 2]

Need changes? Modify code and re-export. Save 115 minutes.

Academic Paper: 50+ Formulas, 3 Hours → 10 Minutes

Before: Word equation editor one by one OR paid tool subscription = 3 hours + Paid subscription

Now: Write LaTeX syntax directly → Click download = 10 minutes + Free

Given mass $m$ and acceleration $a$, according to Newton's second law:

$$
F = ma = m\frac{dv}{dt} = m\frac{d^2x}{dt^2}
$$


Export as native Word format, fully editable. Not an image, but a real equation object.

Team Collaboration: Weekly Reports, 1 Hour → 1 Minute

Before: Copy content → Set format → Adjust lists → Add styling → Excel charts + screenshots = 1 hour weekly

Now: Open file → Choose theme → Click download = 1 minute

Choose "Business" theme, Vega-Lite data charts auto-convert to high-res images, professional look. Save 59 minutes weekly.

Business use cases:
- 📊 Sales trends (line charts)
- 📈 Market share comparison (bar charts)
- 🎯 KPI achievement (gauges)
- 📉 Cost analysis (stacked charts)

Let data speak, generate professional reports with one click.



🎯 Three Core Features

1. Automatic Diagram Conversion

Mermaid · Vega/Vega-Lite · drawio · Canvas · Infographic · Graphviz DOT · SVG images · Complex HTML tables

Mermaid: Flowcharts, sequence diagrams, class diagrams, state diagrams → Technical docs, architecture design
Vega/Vega-Lite: Bar charts, line charts, scatter plots, heatmaps → Business reports, data analytics
drawio: Architecture diagrams, network topologies, UML diagrams → System design, technical documentation
Canvas: Mind maps, knowledge graphs, concept maps → Brainstorming, planning boards
Infographic: Statistical charts, infographics, data visualization → Data presentation, visual storytelling
Graphviz DOT: Directed/undirected graphs, network topology, state machines → Dependency analysis, complex graphs

Time comparison: Complex sequence diagram (10 objects)
- Traditional tools: Draw 30min + Modify 20min + Adjust 10min + Export 5min = 65 minutes
- Markdown Viewer: Write code 5min + Modify 30sec + Export 1sec = 6 minutes

Business scenario: Quarterly sales report (5 bar charts)
- Excel charting + screenshots: Select data 15min + Format 10min + Screenshot 5min = 30 minutes
- Vega-Lite: JSON data 2min + One-click export = 3 minutes

Precise, professional, reusable.

2. Perfect Formula Conversion

LaTeX → Word editable equations (not images!)

After export, you can:
- ✅ Continue editing in Word
- ✅ Adjust font size
- ✅ Modify symbols and variables
- ✅ Copy to other documents

One formula, two approaches:
- ❌ Word equation editor: Click...click...click...select symbols...adjust positions
- ✅ LaTeX: \int_0^\infty e^{-x^2}dx Done

3. 29 Professional Themes

Different scenarios, different styles, one-click switch:
📊 Business / Technical → Business reports, technical docs
📚 Academic / Palatino → Academic papers, book typesetting  
🇨🇳 Heiti / Mixed → Chinese documents
🎨 Typewriter / Handwritten → Creative content
WYSIWYG: Preview looks exactly like exported Word. No guessing, no trial.

No more manual adjustments: Font, size, line spacing, paragraph spacing, code background...



⚡ Lightning Fast Experience

Smart Cache: First Time 5s, Second Time 1s

Document with 50 Mermaid diagrams:
- First open: Text displays instantly, diagrams render in background, all done within 5s
- Second open: Load from cache, instant display (<1s)
- Text modified: Still instant (diagrams from cache)
- Diagram modified: Only re-render changed diagrams

10x faster than Word, 100x smaller files.

Reading Enhancement
Three layouts: Normal (1000px) / Full screen / Narrow (530px, preview Word effect)
Flexible zoom: 50%-400%, shortcuts Ctrl/Cmd + - 0
Smart TOC: Auto-extract headings, sidebar navigation, Ctrl/Cmd + B to toggle
Position memory: Auto-save scroll position, continue reading next time
History: Track recently opened documents


🚀 Quick Start - 3 Steps

Step 1: Install (30 seconds)

Pick one platform and install:
Chrome / Chromium: Chrome Web Store link above
Firefox: Firefox Add-ons link above
VS Code: Extensions panel → search "Markdown Viewer" (or code --install-extension markdown-viewer)
Mobile: Open App Store / Google Play and search "Markdown Viewer"
Step 2: Open a Markdown file (1 minute)

Browser (Chrome / Firefox) — local files:
Enable local file access in your browser extension settings
✅ Now you can double-click to open local .md files
VS Code: Open any .md file → run the preview command (see VS Code Extension)

Mobile: Use file picker or open from cloud drive (details in Mobile App)

Not needed if:
- Only viewing online docs (GitHub, blogs, etc.)
- Using browser's "Open File" function

Quick Start

Open documents: Local .md files / supported diagram files (.mermaid .vega .vl .drawio .canvas .infographic .dot .gv) depending on platform

Export to Word: Click download button or Ctrl/Cmd + S → See progress → Auto-save

Switch themes: Click toolbar → Choose theme → Apply instantly

Adjust view: +/- zoom · Layout switch · Ctrl/Cmd + B TOC



🎁 Complete Features

Full Markdown Syntax Support

Headings · Paragraphs · Bold · Italic · Strikethrough · Lists · Task lists · Blockquotes · Code blocks (100+ languages highlighted) · Tables · Links · Images · Mermaid diagrams · Vega / Vega-Lite charts · drawio diagrams · Canvas diagrams · Infographic charts · Graphviz DOT graphs · LaTeX formulas · HTML · GFM extensions

29 Themes

Classic: Default · Academic · Business · Manuscript · Newspaper
Reading: Palatino · Garamond · Typewriter · Elegant
Modern: Technical · Swiss · Minimal
Creative: Magazine · Century · Handwritten · Verdana
Chinese: Heiti · Mixed · Water
Playful: Rainbow · Starry · Candy · Dinosaur · Space · Garden
Nature: Forest · Ocean · Coral · Sunset

28 Interface Languages

English · 简体中文 · 繁體中文 · Русский · 日本語 · हिन्दी · 한국어 · Deutsch · Português (Brasil) · Português (Portugal) · Nederlands · Українська · Tiếng Việt · Беларуская · Français · Italiano · Bahasa Indonesia · Español · ไทย · Svenska · Türkçe · Eesti · Bahasa Melayu · Polski · Suomi · Lietuvių · Norsk · Dansk



💎 Competitive Advantages

|  | Manual Screenshots | CLI Tools | Online Services | Desktop Editors | Markdown Viewer |
|---|:---:|:---:|:---:|:---:|:---:|
| Ease of Use | Tedious | Setup needed | Upload needed | Install needed | ✅ One-click |
| Mermaid | Manual screenshot | Plugin needed | ✅ Supported | ✅ Supported | ✅ Native support |
| Math Formulas | Images | Images | Images | Images | ✅ Editable |
| Privacy | ✅ Local | ✅ Local | ❌ Cloud upload | ✅ Local | ✅ Local |
| Themes | - | - | 3-5 | 5-10 | ✅ 29 |
| Offline | ✅ | ✅ | ❌ | ✅ | ✅ |
| GitHub Direct View | ❌ | ❌ | ❌ | ❌ | ✅ |
| Price | Free | Free | Paid plans | Paid plans | ✅ Free |

Core advantage: Faster, cheaper, safer, more powerful.



❓ FAQ

Q: Can I edit the exported Word document?
A: Yes. Standard .docx format, math formulas are editable, not images.

Q: Which diagrams are supported?
A: All Mermaid diagrams (flowchart, sequence, gantt, class, state, pie, ER, etc.), Vega / Vega-Lite data visualization charts, drawio architecture diagrams, Canvas mind maps, Infographic statistical charts, Graphviz DOT graphs + SVG auto-conversion.

Q: Is there a file size limit?
A: No limit. Smart cache, documents with 100+ diagrams open instantly.

Q: Does it require internet?
A: No. Completely local processing, works offline.

Q: Will my documents be uploaded?
A: Never. All processing happens locally.

Q: How to switch themes?
A: Click toolbar icon → Select theme → Apply instantly.

Q: Can I customize themes?
A: Currently 29 preset themes, customization coming soon.

Q: Will large documents lag?
A: No. Progressive loading + smart cache, text displays instantly, diagrams render in background (first 5s, second 1s).

Q: Does cache take up much space?
A: Default max 1000 items, approximately 500 MB, adjustable or clearable in settings.

Q: Which browsers are supported?
A: Chrome/Chromium-based browsers (Edge, Brave, Opera, etc.) and Firefox.

Q: Which Word versions can open the exported file?
A: Word 2016+ fully supported, Word 2013 also works. Fully compatible with WPS Office.

Q: Can I export to PDF?
A: Currently Word only, PDF planned. You can export to Word then save as PDF.

Q: Which theme suits me?
A: Business reports → Business · Academic papers → Academic · Technical docs → Technical · Chinese docs → Heiti/Mixed

Q: What's the difference between Vega and Mermaid?
A: Mermaid is for flowcharts, architecture diagrams, and other schematic diagrams; Vega/Vega-Lite is for data visualization like sales charts, financial reports, and other data-driven business charts. They complement each other for different scenarios.

Q: How to create charts with Vega-Lite?
A: Use ```vega-lite code block in Markdown with JSON format chart specification. See Vega-Lite official examples.



🔒 Privacy Commitment
✅ All processing done locally, never uploaded
✅ No tracking, no personal data collection
✅ Open source code, auditable and transparent
✅ Browser extensions use modern platform standards (Manifest V3)
Your privacy is 100% protected.



🆘 Get Help

📖 Full Documentation · 🐛 Report Issues · 💡 Feature Requests · ⭐ GitHub Star



🎉 Get Started Now

Install in 30 seconds, start using immediately:
Install on Chrome / Firefox / VS Code / Mobile (links above)
Open a Markdown file
Preview and click export (or use Ctrl/Cmd + S where supported)
✅ Get a clean, ready-to-share Word document
You'll get: Markdown → Word one-click conversion · Mermaid/Vega/drawio/Canvas/Infographic/Graphviz auto-convert · LaTeX editable formulas · 100+ languages syntax highlighting · 29 themes · Smart cache · Completely free

Perfect for: Technical writers · Students/researchers · Product managers · Developers · Anyone using Markdown



🌱 Community Projects
🖥️ md2x - Node.js CLI tool for batch conversion and automation


📜 Open Source License

This project is open source under ISC license. Welcome to Star, report issues, suggest features, and contribute code.

Project URL: https://github.com/markdown-viewer/markdown-viewer-extension



Stop wasting time on formatting

Focus on writing, let Markdown Viewer handle everything else

🚀 Install Now: https://chromewebstore.google.com/detail/markdown-viewer/jekhhoflgcfoikceikgeenibinpojaoi

Completely Free · Local Processing · Privacy Protected