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Markdown → HTML · Preview · GFM · No upload · Browser

Free Markdown to HTML converter

Convert Markdown to HTML with live preview directly in your browser. Supports GitHub Flavored Markdown (GFM) tables, task lists, code blocks, smart punctuation and more. Your content never leaves your device.

Indent
Markdown source
HTML preview
Your rendered preview will appear here. Type or paste Markdown on the left, or click Sample to see a demo.

Quick syntax reminder:
# Heading 1  ·  **bold**  ·  *italic*
- list item  ·  - [x] task  ·  `code`
```js … ```  ·  > blockquote  ·  [text](url)
Ctrl+Enter Ready

Main features

Full GFM parser

Tables with alignment, task lists, strikethrough, fenced code blocks, setext headings and nested lists.

4 modes

Live preview, HTML source output, HTML to Markdown reverse conversion, and Markdown formatter.

Smart options

Smart punctuation, hard breaks, auto-links, HTML sanitization and optional wrapper div.

Local only

Everything runs in your browser. No file is sent to any server. Works offline after page load.

Frequently asked questions

Is data uploaded?

No. The Markdown parser runs entirely in JavaScript in your browser. Your content is never sent to a server.

Does it support GitHub Flavored Markdown?

Yes. GFM tables with left/center/right alignment, task lists with checkboxes, strikethrough (~~text~~) and fenced code blocks with language class are fully supported.

What does Smart punctuation do?

It transforms -- into em dashes (—), ... into ellipsis (…), and straight quotes into curly typographic quotes.

Can I convert HTML back to Markdown?

Yes. Switch to the HTML → MD mode and paste your HTML. The converter handles headings, lists, links, images, bold, italic and code blocks.

How do I upload a .md file?

Click the Upload button or drag and drop any .md or .txt file directly onto the source editor. The content loads instantly and converts automatically.

Markdown guides