How to use the Markdown → HTML Converter
1. Paste or type Markdown in the left panel — the HTML output updates in real time.
2. Toggle between "HTML Source" and "Live Preview" tabs on the right.
3. Click Copy HTML to copy the raw HTML, ready to paste into your application.
What is it?
LLMs predominantly output Markdown — it's the default format for GPT-4, Claude, and Gemini responses. To display AI-generated content in web applications, emails, or PDFs, you need to convert it to HTML. This tool handles all common Markdown elements: headers, emphasis, code blocks, lists, links, images, blockquotes, and horizontal rules.
The conversion runs entirely in your browser — no data leaves your machine. The output is clean, semantic HTML without inline styles, letting you apply your own CSS. For rendering untrusted AI-generated content in production, always sanitize the HTML output using DOMPurify or a server-side sanitizer before injecting it into the DOM.
Example
# Hello
**Bold** and *italic* text.
- Item 1
- Item 2
```js
console.log("hi");
```<h1>Hello</h1>
<p><strong>Bold</strong> and <em>italic</em> text.</p>
<ul>
<li>Item 1</li>
<li>Item 2</li>
</ul>
<pre><code class="language-js">console.log("hi");</code></pre>Use DOMPurify in production to sanitize AI-generated HTML before rendering it in the DOM.
Benefits
Convert AI-generated Markdown responses to embeddable HTML
Most LLMs return Markdown — convert to HTML before rendering in web pages, emails, or admin panels.
Preview Markdown content as rendered HTML before publishing
See exactly how headings, bold, links, code blocks, and lists will appear to end users before the content goes live.
Generate HTML from README and documentation Markdown files
Convert .md files to HTML for embedding in documentation sites, admin interfaces, or static HTML pages.
Test Markdown rendering without installing a markdown library
Verify how your Markdown converts to HTML without setting up marked.js, remark, or a full documentation build pipeline.
Frequently asked questions
Is this safe to use with AI-generated content?
The converter itself is safe — it runs client-side only. However, when rendering AI-generated HTML in your app's DOM (via innerHTML or dangerouslySetInnerHTML), always sanitize first with DOMPurify (browser) or bleach (Python) to prevent XSS attacks.
What Markdown flavors are supported?
This tool supports CommonMark-compatible syntax: headers, bold, italic, strikethrough, inline code, fenced code blocks, links, images, unordered/ordered lists, blockquotes, and horizontal rules. GitHub Flavored Markdown extensions like tables and task lists are not yet supported.
How do I style the output HTML?
The output has no inline styles — apply your own CSS. Target h1, h2, p, ul, ol, li, blockquote, pre, code elements. For a quick start, use a Markdown CSS library like github-markdown-css or water.css.