日本語

Convert Markdown to HTML

Paste Markdown or drop a .md file and get the HTML, with a rendered preview next to it.

Loading the tool…

How it works

  1. Paste your Markdown, or drop a .md file.
  2. HTML is already selected.
  3. Copy the markup or download it.

Why nothing is uploaded

Every operation on this page is done by code running inside your browser tab, using the same engine that renders web pages. The file is read from disk into your tab’s memory, transformed there, and written back out as a download. It is never sent anywhere — not to us, not to a third party.

Verify it yourself

  1. Open your browser’s developer tools (F12) and select the Network tab.
  2. Load your file and run the tool.
  3. The only requests you will see are the tool’s own code and, once cached, none at all.

Proof it stays local →

Frequently asked questions

Which flavour of Markdown?

GitHub-flavoured Markdown via marked: tables, strikethrough, task lists, autolinks and fenced code blocks all work.

Is the HTML sanitised?

No — raw HTML inside your Markdown is passed through, because stripping it would break legitimate documents. Since nothing is uploaded and the preview is sandboxed, that is safe here; sanitise before publishing content written by someone else.

Is my document uploaded?

No. It is parsed and converted inside this browser tab. Load the page, disconnect, and it still works — which is the only guarantee worth having for a contract or a customer list.