Are nested lists and Markdown tables converted correctly?

Neither is supported. Pipe tables pass through as paragraph text, and indented sub-items are flattened into the same list level because list items are matched line by line.

Is the HTML output sanitized before it appears in the preview pane?

Code fence contents are escaped, but raw HTML you write inside Markdown is passed through untouched. Only convert content you trust, and sanitize server-side before publishing anywhere.

Why do the preview and the copied HTML output differ?

They are deliberately different strings. The exported HTML keeps real h1 through h6 elements, while the preview remaps them so the sample headings do not join this page's own document outline.

utilitiestools.net Free Developer Tools

Markdown ↔ HTML

Text Client-Side Privacy

Convert Markdown to HTML and HTML to Markdown.

Markdown Input

HTML Output

<h1>Markdown to HTML</h1>
<p>This is a <strong>bold</strong> text and an <em>italic</em> text.</p>
<h2>Features</h2>
<li>Lists</li>
<li><a href="https://example.com">Links</a></li>
<li><code>Inline code</code></li>
<pre><code class="language-js">console.log("Hello, World!");</code></pre>
<blockquote>A blockquote example.</blockquote>
<hr>
<ol><li>Ordered item 1</li>
<li>Ordered item 2</li></ol>

Preview

Markdown to HTML

This is a bold text and an italic text.

Features

Lists

Links

Inline code

console.log("Hello, World!");

A blockquote example.

Ordered item 1
Ordered item 2

How to Use Markdown ↔ HTML

Follow this simple step-by-step guide to get the most out of our free online Markdown ↔ HTML:

1
Pick a direction with the Markdown to HTML or HTML to Markdown tab.
2
Type or paste your source document into the left input textarea.
3
Read the converted result in the right panel, which updates on every keystroke.
4
Scroll to the rendered Preview underneath when converting Markdown to HTML.
5
Copy the output or download it as output.html or output.md.

Key Features & Capabilities

Zero Uploads

Execution occurs 100% locally in your browser memory for maximum privacy.

Instant Latency

Zero network lag or server queues — get results instantaneously as you type.

Quick Export

One-click copy to clipboard or instant file download options built right in.

Technical Specifications & Privacy Guarantee

At utilitiestools.net, privacy and data security are core design principles. When using Markdown ↔ HTML, your inputs are parsed and processed locally via client-side JavaScript execution engine. No plain text, uploaded media, or API tokens are transmitted over the internet or logged into remote server infrastructure.

Common Practical Use Cases

Email campaigns: turn a Markdown draft into HTML you can paste into a newsletter template.
CMS migration: convert legacy HTML article bodies into Markdown for a static site generator.
README work: preview how headings, code fences, and blockquotes will render before committing.
Snippet extraction: strip tags from a copied HTML block to get clean Markdown for documentation.

Frequently Asked Questions

No. It is a regex-based converter covering headings, bold, italic, inline code, fenced code blocks, links, images, blockquotes, horizontal rules, and flat ordered and unordered lists.