Free Tool
Markdown to HTML Converter
Paste Markdown on the left, copy HTML on the right. Download a complete .html file or preview the rendered output safely in a sandboxed iframe.
Paste your Markdown
Drop in any Markdown, from a quick note to a full README. The parser updates the output as you type.
Copy or download
Copy the HTML fragment to your clipboard, or download a self-contained .html file ready to open in any browser.
Preview in a sandbox
See how the HTML renders inside a sandboxed iframe that blocks scripts, so untrusted input stays harmless.
Converter
Edit the Markdown and the HTML output updates live.
<h1>Hello Markdown</h1>
<p>This is a <strong>bold</strong> paragraph with a <a href="https://example.com">link</a>.</p>
<ul>
<li>Item one</li>
<li>Item two</li>
<li>Item three</li>
</ul>
<blockquote>
<p>A blockquote for good measure.</p>
</blockquote>
<h2>Code sample</h2>
<p>Use <code>inline code</code> or a fenced block:</p>
<pre><code class="language-js">function greet(name) {
return `Hello, ${name}!`;
}
</code></pre>
How the conversion works
Markdown is a lightweight markup language that maps to a small set of HTML tags. Headings become <h1> through <h6>, lists become <ul>/ <ol>, and emphasis becomes <strong> or <em>.
This tool parses your Markdown with GitHub-Flavored Markdown rules, so tables, task lists, and autolinks are handled the same way GitHub would handle them. Need a refresher? See the what-is-Markdown guide or the cheat sheet.
Frequently asked questions
- How do I convert Markdown to HTML with this tool?
- Paste your Markdown into the left panel. The right panel updates live with the generated HTML. Switch to the HTML tab to copy the fragment, or click Download to save a complete .html file.
- Does this tool save or upload my Markdown?
- No. The converter runs entirely in your browser. Nothing is uploaded, stored, or logged, so you can safely paste private content.
- What Markdown syntax is supported?
- The tool uses GitHub-Flavored Markdown, so headings, lists, links, images, tables, task lists, strikethrough, fenced code blocks, and autolinks all work.
- Is the rendered preview safe?
- Yes. The preview is rendered inside a sandboxed iframe with no permissions, so any raw HTML in your Markdown cannot execute scripts, submit forms, or navigate the parent page.
- Can I use the generated HTML anywhere?
- The HTML fragment can be pasted into any system that accepts raw HTML. Email clients, CMS editors, and note-taking apps each enforce their own HTML rules, so test before publishing.