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Markdown to HTML — Free Online Converter with Live Preview

Render Markdown to HTML with live preview. GFM tables, task lists, fenced code blocks. Powered by marked.

Free No signup Client-side Privacy friendly Updated
Loading renderer…

View raw HTML

How to use

  1. 1 Paste Markdown — GFM, CommonMark, both are supported.
  2. 2 Toggle GFM features (tables, task lists, strikethrough) and line-break handling.
  3. 3 See the live HTML preview on the right. Open "View raw HTML" for the source.
  4. 4 Copy or download the rendered HTML.

Why use this tool

  • Powered by <code class="font-mono text-xs">marked</code> — fast, spec-compliant Markdown renderer.
  • Library is loaded lazily on first render — the page stays light.
  • GFM extensions toggleable — tables, fenced code, task lists, strikethrough.
  • Live preview side-by-side with raw HTML access.

Frequently asked questions

Is the HTML sanitized?

No — the raw rendered HTML is shown as-is so you can copy/paste into your CMS. If you're embedding untrusted input on a public site, run the output through a sanitizer like DOMPurify before injection.

Does it support GitHub task list checkboxes?

Yes — enable GFM and <code class="font-mono text-xs">- [x] done</code> renders as a checked checkbox.

Need the reverse direction?

Use <a class="text-brand-600 hover:underline" href="/html-to-markdown">HTML to Markdown</a> for the round trip.

Related tools?

<a class="text-brand-600 hover:underline" href="/markdown-formatter">Markdown Formatter</a> reformats with Prettier; <a class="text-brand-600 hover:underline" href="/markdown-table-generator">Markdown Table Generator</a> builds tables from a grid.

What is Markdown to HTML Converter?

A Markdown to HTML Converter is a tool that renders Markdown text into HTML markup with a live preview. It runs in the browser using the marked parser and supports GitHub Flavored Markdown features including tables, task lists, and fenced code blocks, turning plain Markdown into ready-to-use HTML output.

Features

Live preview

See rendered HTML update as you type, alongside the raw output.

GitHub Flavored Markdown

Tables, task lists, strikethrough, and fenced code blocks are all supported.

100% private

Rendered with marked on your device — nothing is uploaded.

Example

Input

# Hi

**bold** text

Output

<h1>Hi</h1>
<p><strong>bold</strong> text</p>

Common use cases

  1. 1

    Publish Markdown as HTML

    Convert a README or article into HTML to embed in a page or email.

  2. 2

    Preview before committing

    Check how Markdown will render on GitHub or a docs site.

  3. 3

    Generate email/CMS HTML

    Write in Markdown and export clean HTML for a CMS or newsletter.

Summary

Zerethon's Markdown to HTML converter renders Markdown into HTML with a live preview in your browser, using the marked parser. It supports GitHub Flavored Markdown — tables, task lists, strikethrough, and fenced code blocks — producing ready-to-use HTML. Everything runs client-side, so your Markdown is never uploaded.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

References

Privacy

Your data never leaves your browser unless explicitly stated. Markdown to HTML Converter runs entirely client-side — no server upload, no logging, no tracking of your input.

Compare

Markdown vs HTML

Learn the basics

What is Markdown?

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