Install MD Viewer as an app for offline use!
MD Viewer
v1.0.0
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Editor
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Drop Markdown File Here

Supports .md, .markdown, .txt

Load File from URL

Enter a publicly accessible raw Markdown file URL (e.g., GitHub Raw URL).

Failed to fetch file.

Save File

Confirm or update the file name before downloading.

Markdown Cheat Sheet

Headers

# H1 Header ## H2 Header ### H3 Header

Text Styling

**Bold Text** *Italic Text* ~~Strikethrough~~

Links & Images

[Link Text](https://url) ![Alt](image-url.jpg)

Lists & Quotes

- Bullet Item 1
- Bullet Item 2
1. Numbered Item > Blockquote

Code Blocks

```javascript const message = "Hello World"; ```
Uses standard GitHub Flavored Markdown (GFM). Full Documentation

Mermaid.js Syntax

Wrap Mermaid code blocks with ```mermaid and ``` in your editor to render diagrams automatically.

Flowchart

graph TD; A-->B; A-->C; B-->D; C-->D;

Sequence Diagram

sequenceDiagram Alice->>John: Hello John, how are you? John-->>Alice: Great!

Pie Chart

pie "Dogs" : 386 "Cats" : 85 "Rats" : 15

State Diagram

stateDiagram-v2 [*] --> Still Still --> [*] Still --> Moving
Supports graphs, diagrams, and charts. Full Documentation

About & Privacy

🔒 100% Private & Local
This application runs entirely inside your web browser. Your Markdown documents, pasted text, and files are never uploaded, sent, or stored on any external server.

💾 Session Storage
The autosave feature writes to your browser's sessionStorage. Your work is kept safe from accidental page reloads, but is permanently cleared as soon as you close the tab to protect your privacy.

🛡️ Security
Rendered HTML is actively sanitized using DOMPurify to protect against Cross-Site Scripting (XSS) and malicious file content.

Disclaimer: This software is provided "as is", without warranty of any kind. The creator assumes no liability for data loss, security breaches, or damages arising from the use of this application. Always backup your important files.