Markdown to HTML — Live Preview & Clean HTML Output
GitHub-flavoured Markdown in, rendered preview and copy-ready HTML out. Nothing leaves your browser.
🔒 Runs in your browser — files never uploaded ⚡ No signup 💯 Free
Simplified layout on small screens — the full version is on desktop.
Write or paste Markdown and get two things at once: a rendered preview that shows exactly how it will look, and the clean HTML behind it, ready to copy into a CMS, an email template or a static site. GitHub Flavored Markdown is on by default — tables, task lists, strikethrough, fenced code blocks and autolinks all work.
Conversion runs in your browser with the same parser many static-site tools use, so the output matches what you'd get from a build step — without one.
How to use Markdown to HTML Converter
- Type or paste Markdown on the left; the preview updates as you type.
- Switch to the HTML tab to see the generated markup.
- Toggle options — turn GFM off for strict CommonMark, or make single line breaks into
<br>for chat-style text. - Copy the HTML fragment, or download a complete standalone
.htmlpage with basic styling.
Which Markdown?
"Markdown" is a family. CommonMark is the precise spec for the core syntax. GitHub Flavored Markdown (GFM) extends it with the pieces everyone expects today: pipe tables, - [ ] task lists, ~~strikethrough~~, bare-URL autolinks and fenced code blocks with a language hint. GFM is the default here because it is what GitHub, GitLab, Discord, Notion exports and most documentation tools speak. Turn it off to see how a strict CommonMark renderer would treat the same text.
Line breaks — the thing that surprises everyone
In standard Markdown, a single newline is just a space; you get a new paragraph with a blank line, or a hard line break by ending the line with two spaces or a backslash. Text copied from chat apps or plain-text notes relies on single newlines, so the Line breaks option makes each one a <br>. Use it for that kind of source; leave it off for prose written as Markdown.
About the HTML you get
It is a fragment — the body content only, no <html> or <head> — which is what you want to paste into a CMS editor, a template or an email builder. The download button wraps the same fragment in a complete page with a small default stylesheet, useful for a quick preview file or a README-as-webpage.
Raw HTML inside the Markdown passes straight through, as Markdown specifies. That means the output is only as trustworthy as the input: if the Markdown came from strangers, sanitise the HTML before publishing it. The preview on this page is rendered inside a fully sandboxed frame, so nothing in it can run here — but that protection does not travel with the copied HTML.
Styling the result
The fragment is plain semantic HTML — h1–h6, p, ul/ol, pre>code, table, blockquote — with no classes or inline styles. It inherits whatever stylesheet you drop it into, which is the whole point. Code blocks carry a language-xxx class on the <code> element for syntax highlighters. To tidy or compact the output, the HTML beautifier and minifier take it from here.
Frequently asked questions
Is my text uploaded anywhere?
No. The Markdown parser is a JavaScript library that runs in your browser; conversion, preview and download all happen locally. Draft blog posts and internal docs never leave your device.
Why is my table not rendering?
Tables are a GitHub Flavored Markdown extension — make sure the GFM option is on. Then check the syntax: a header row, a separator row of dashes (|---|---|) with the same number of columns, and one row per line. A missing separator row is the usual cause.
My line breaks disappear — how do I keep them?
Standard Markdown treats a single newline as a space. Either end lines with two spaces (or a backslash) for a hard break, leave a blank line for a new paragraph, or turn on the Line breaks option to make every newline a <br>.
Is the HTML output safe to publish?
It is exactly what your Markdown says — including any raw HTML in it, which Markdown passes through by design. If the Markdown is yours, publish away. If it came from users or an untrusted source, run the HTML through a sanitiser first; the preview here is sandboxed, but the copied output is not.
Can it convert HTML back to Markdown?
Not on this page — it's one direction. HTML → Markdown is a lossy conversion (styling, complex tables and nested layouts have no Markdown equivalent), which is why it lives as a separate tool when it exists.