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Markdown to HTML

Convert markdown to raw HTML source for emails and static sites.

markdownhtmlconvertgfmstatic
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About the Markdown to HTML

The Markdown to HTML tool converts Markdown source into raw HTML output, the kind you can paste straight into an email template, a static site, or a CMS rich-text field that only accepts markup. It is powered by the marked library running entirely in the browser, so documents never leave your machine. Two toggles control the conversion: GFM enables GitHub-flavored extras like tables, task lists, and strikethrough, while Convert line breaks to <br> decides whether a single newline inside a paragraph becomes a break tag — useful for chat-style text, annoying for normal prose. The editor ships preloaded with a sample document exercising headings, links, inline code, a fenced JavaScript block, a table, and a blockquote, and everything recalculates as you type. A stat strip compares input and output character counts and byte sizes so you can see the markup overhead at a glance, and the finished HTML downloads as markdown.html. A note at the bottom points readers who want to see the rendered result to the separate Markdown Preview tool, keeping the distinction between source and rendered output explicit.

Markdown to HTML examples

Input
# Hello Fernandes Labs

**bold** and *italic* with [a link](https://example.com) and `inline code`.
Output
<h1>Hello Fernandes Labs</h1>
<p><strong>bold</strong> and <em>italic</em> with <a href="https://example.com">a link</a> and <code>inline code</code>.</p>
Note: Headings, emphasis, links, and inline code become their HTML equivalents; the output is source, not a rendered page.
Input
| Tool | Status |
| --- | --- |
| Cron | Ready |
Output
<table>
<thead>
<tr>
<th>Tool</th>
<th>Status</th>
</tr>
</thead>
<tbody><tr>
<td>Cron</td>
<td>Ready</td>
</tr>
</tbody></table>
Note: With the GFM switch on, pipe tables convert to full <table> markup; with GFM off the same input stays literal text.
Input
line one
line two
Output
<p>line one<br>line two</p>
Note: With Convert line breaks to <br> enabled, a single newline becomes a break tag; with it off the two lines render as one paragraph.

How to use the Markdown to HTML

  1. 1

    Paste or type Markdown into the Markdown input textarea, or click Sample to restore the demo document.

  2. 2

    Toggle GFM for tables, task lists, and strikethrough support.

  3. 3

    Toggle Convert line breaks to <br> if single newlines should produce break tags.

  4. 4

    Read the raw HTML in the HTML output box — it updates live with every change.

  5. 5

    Download the result as markdown.html when you are done.

Common use cases

  • Generating HTML fragments to paste into an email builder that accepts markup.
  • Converting README sections into HTML for a documentation site that stores raw markup.
  • Producing table markup from GFM pipe tables without writing <tr> by hand.
  • Converting release notes from Markdown for a CMS rich-text field.
  • Checking the exact HTML a Markdown library will emit before styling it.
  • Building static page content in Markdown and exporting the HTML source.

Best practices

  • Keep GFM on unless you specifically target a parser without GitHub extensions.
  • Leave the line-break toggle off for prose — it produces <br> inside paragraphs where a browser would otherwise wrap naturally.
  • Remember the output is raw source: paste it into a text editor or code view, not a WYSIWYG canvas.
  • For code blocks, the HTML keeps your fenced language tag as a class, so style it afterward.
  • Compare Input size and Output size stats when estimating payload growth for email-friendly output.
  • Use Markdown Preview when you need the rendered view; this tool is for when you need the markup itself.

Tips

  • Load the sample to see GFM tables, task lists, and strikethrough converted in one document.
  • Watch the Output chars stat when writing for email — it reflects the markup weight clients must handle.
  • Toggle GFM off and on with a table in place to see exactly what the flag protects.
  • Download markdown.html and open it in a browser to check the raw source against the rendered page.

Frequently asked questions

With GFM on, GitHub-flavored extensions are active: pipe tables, task lists with checkboxes, and strikethrough with ~~ double tildes. With it off, those constructs degrade — tables become literal text and task-list markers render inside the list text.

Standard Markdown ignores a single newline inside a paragraph. Enabling the toggle emits a <br> at each single newline, which matches how people write chat messages or lyrics, and is what the marked breaks option does.

Yes. The marked library runs synchronously in the browser, so your Markdown never touches a server. That makes the tool safe for internal drafts and instantly responsive to typing.

No — it is a fragment, typically starting with an <h1> or <p>. Wrap it in your own <html> and <body> structure, or use the Markdown Preview tool, which can download a complete standalone document.

Fenced code blocks convert to <pre><code class="language-js"> elements, preserving indentation and language hints. Inline code becomes <code> spans. The escaping of < and > inside code is handled for you.

Yes, into email builders that accept HTML source, or into the HTML view of editors like Outlook and Thunderbird. Keep in mind that many email clients restrict CSS, so style inline rather than relying on classes.

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