Markdown to HTML Converter
Convert GitHub-flavoured Markdown to clean HTML you can paste anywhere. Live preview.
Quick answer: Markdown to HTML Converter: convert GitHub-flavoured Markdown to clean HTML you can paste anywhere. Live preview. Runs entirely in your browser, free, no signup.
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This converter targets GitHub Flavored Markdown, so the extensions people actually rely on — tables, fenced code blocks with language hints, task lists, strikethrough, and autolinks — all render correctly, not just the bare CommonMark basics. It emits a body fragment rather than a full HTML document, which is precisely what you want when pasting into a CMS, a blog editor, or an email template.
A security note that matters if any of your Markdown originates from other people: raw HTML passes through untouched by design, which is convenient for embedding the odd <div> but means the output is only as trustworthy as the input. Before mounting user-supplied Markdown in a live app, run the resulting HTML through a sanitizer such as DOMPurify to strip script and event-handler attributes.
The conversion is a one-way transform; it will not wrap the fragment in <html> or add a stylesheet, leaving those choices to your own template. When you receive HTML and want to go back to clean Markdown — for example to store documentation in a repository — the companion HTML to Markdown converter uses the same GFM conventions in reverse.
Frequently asked questions
- Which Markdown flavour do you support?
- GitHub Flavoured Markdown (GFM) — tables, fenced code blocks, task lists (<code>- [ ]</code>), strikethrough, autolinks and the usual headings, lists, blockquotes and emphasis.
- Will inline HTML in my Markdown be preserved?
- Yes — by default raw HTML in Markdown passes through unchanged, which lets you mix Markdown with the occasional <code><div></code> or <code><img></code>.
- Is the HTML safe to embed without sanitising?
- Treat the output the same as any HTML you'd embed: if your source could contain user-pasted content, run it through a sanitiser like DOMPurify before mounting in your app.
- Does it generate the surrounding <code><html></code> document?
- No — it produces only the body fragment, which is what you usually want when pasting into a CMS or blog editor. Wrap it in your own template if you need a full document.
- Is my Markdown uploaded?
- No — marked runs entirely in your browser, so nothing leaves your device.