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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
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.

Summary

Markdown to HTML Converter is a free developer utility by Zerethon Tools. Render Markdown to HTML with live preview. GFM tables, task lists, fenced code blocks. Powered by marked. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

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.

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