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Markdown to HTML Converter

Write or paste Markdown and get clean, sanitized HTML with a live side-by-side preview — GitHub-flavored, copy-ready, and processed entirely in your browser.

FreeNo sign-upPrivate — runs in your browser, nothing is uploaded

Renders GitHub-flavored Markdown to clean, sanitized HTML (script tags and unsafe attributes are stripped). Runs entirely in your browser — your text is never uploaded.

Quick answer

This tool converts Markdown to HTML in real time, showing a live preview alongside the generated HTML you can copy. It supports GitHub-flavored Markdown (headings, lists, tables, code blocks, links, and more) and sanitizes the output, stripping script tags and unsafe attributes so the HTML is safe to paste into a page. Everything runs in your browser, so your text is never uploaded.

Formula & method

Your Markdown is parsed by a GitHub-flavored Markdown engine into HTML, which is then sanitized to remove any script tags, event handlers, and other unsafe markup. The preview pane renders the sanitized HTML, and the HTML tab shows the exact, copy-ready source. Conversion happens live as you type.

Examples

Example 1: Heading and bold
Input
# Title and **bold**
Result
<h1>Title</h1> … <strong>bold</strong>
Why
Standard Markdown maps to the matching HTML tags.
Example 2: Bullet list
Input
- a\n- b\n- c
Result
<ul><li>a</li>…</ul>
Why
Dashes become an unordered list.
Example 3: Fenced code
Input
```js … ```
Result
<pre><code> … </code></pre>
Why
Triple backticks become a preformatted code block.

When to use this tool

  • Turning a README or Markdown note into HTML for a website or email.
  • Previewing how Markdown will render before publishing.
  • Getting clean, safe HTML from Markdown to paste into a CMS.

Common mistakes

  • Forgetting the blank line before a list or heading, which can stop Markdown from recognizing it.
  • Expecting raw <script> to run in the preview — it's stripped by the sanitizer for safety.
  • Mixing inconsistent indentation in nested lists, which changes the structure.

Frequently asked questions

What Markdown features are supported?

GitHub-flavored Markdown: headings, bold/italic, lists, links, images, tables, blockquotes, inline code, and fenced code blocks, plus line breaks.

Is the HTML safe to use?

Yes. The output is sanitized, removing script tags, inline event handlers, and other unsafe markup, so it's safe to paste into a page.

Is my text uploaded?

No. Parsing and sanitizing both happen in your browser; nothing is sent to a server.

Can I copy just the HTML?

Yes. Switch to the HTML tab or use Copy HTML to grab the clean, copy-ready source.

Does it handle tables?

Yes. GitHub-style pipe tables are converted to proper HTML <table> markup.

Why was my HTML stripped?

If you included raw HTML with scripts or unsafe attributes, the sanitizer removes those parts while keeping the safe content.

Sources & references

External references open in a new tab. We are independent and not affiliated with these organizations.

  • ✓ Free to use
  • ✓ No sign-up required
  • ✓ Runs entirely in your browser — nothing is uploaded.
  • ✓ Formula and method shown above
Last updated: How we calculateReport a correctionDisclaimer

Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.

Built and reviewed by HIFreeTools against the formula shown above and any authoritative references cited on this page. See our methodology and editorial standards.

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