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Markdown to HTML Converter

Preview and copy HTML from Markdown without a build step. Processing stays on your device.

How to Use

  1. Paste Markdown or upload a .md file.
  2. Preview sanitized HTML live.
  3. Copy or download the HTML snippet.

Key Features & Privacy Advantage

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • marked parsing + DOMPurify sanitization.
  • Live preview pane.
  • Copy and download actions.

Technical Breakdown

Markdown is ideal for drafts; HTML is what browsers render. We parse with marked and sanitize with DOMPurify before injecting preview HTML to reduce XSS risk from untrusted notes.

Output is a fragment suitable for CMS fields. Full document chrome (html/head) is omitted on purpose.

Frequently Asked Questions

Is my draft uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

Is HTML sanitized?

Yes — preview output passes through DOMPurify.

GFM supported?

Common GFM features depend on the marked configuration shipped with the tool.

Can I convert back?

Use HTML to Markdown Converter.