Markdown to HTML converter (CommonMark and GFM) - free online tool
What is a Markdown to HTML converter?
A Markdown to HTML converter turns Markdown text into HTML tags. Use it when you need to publish docs to a website, preview Markdown output, or move content into a CMS that expects HTML.
Textavia converts in your browser. If you are pasting sensitive notes or internal docs, the content stays on your device.
How to use the Markdown to HTML converter
- Paste Markdown: Add your Markdown into the input box above.
- Pick a flavor: Choose CommonMark for strict Markdown, or GitHub Flavored Markdown (GFM) for tables, task lists, and strikethrough.
- Copy the HTML: Copy the HTML fragment, or wrap it as a full HTML document if you need a standalone page.
Why convert Markdown to HTML?
- Publish anywhere: Many platforms accept HTML even if they do not support Markdown.
- Preview formatting: See headings, lists, links, code blocks, and tables as HTML.
- Safer output: Sanitization can remove risky tags when you do not trust the input.
Use case 1: Move Markdown into a CMS
Some CMS editors store content as HTML. Convert Markdown to HTML first so headings and lists keep their structure.
Use case 2: Create HTML for email drafts
If you are building an email in an editor that accepts HTML, convert your Markdown sections into HTML and then style them.
Use case 3: Generate static docs pages
When you are generating docs pages, you often need HTML output you can feed into a template.
Examples
Basic example
Input (Markdown):
# Release notes
- Fixed the login redirect
- Added CSV export
Read the docs at https://textavia.com/tools
Output (HTML):
<h1>Release notes</h1>
<ul>
<li>Fixed the login redirect</li>
<li>Added CSV export</li>
</ul>
<p>Read the docs at https://textavia.com/tools</p>
Advanced example (GFM tables and task lists)
GFM supports tables and task lists. CommonMark does not include tables in the core spec, so you need GFM mode for this kind of input.
Input (Markdown):
## Sprint checklist
- [x] Ship the hotfix
- [ ] Write the migration guide
| name | status | owner |
| --- | --- | --- |
| CSV export | done | Dina |
| Table parsing | in progress | Evan |
Output (HTML):
<h2>Sprint checklist</h2>
<ul class="contains-task-list">
<li class="task-list-item">
<input checked="" disabled="" type="checkbox" />
Ship the hotfix
</li>
<li class="task-list-item">
<input disabled="" type="checkbox" />
Write the migration guide
</li>
</ul>
<table>
<thead>
<tr>
<th>name</th>
<th>status</th>
<th>owner</th>
</tr>
</thead>
<tbody>
<tr>
<td>CSV export</td>
<td>done</td>
<td>Dina</td>
</tr>
<tr>
<td>Table parsing</td>
<td>in progress</td>
<td>Evan</td>
</tr>
</tbody>
</table>
Common errors
My table did not convert
Tables are a GFM feature. Fix: switch the Markdown flavor to GFM, or rewrite the content without tables.
If you want the spec details, see the official CommonMark spec at https://spec.commonmark.org/.
The HTML output removed my tags
If sanitization is on, the converter may remove tags that can run scripts or embed external content. Fix: keep sanitization on for untrusted input. Turn it off only when you trust the source and you need to keep raw HTML.
Tips and proven approaches
- Keep it as a fragment unless you need a full page: An HTML fragment is easier to paste into templates and editors. Use the full document option when you need
<!doctype html>and a<head>. - Format the output before committing it: If you are checking HTML into a repo, run it through the HTML formatter so diffs stay readable.
- Use GFM when your Markdown contains tables: If your input has pipes (
|) and a separator row, GFM mode matches how GitHub renders it.
Related tools
- Convert the other direction using the HTML to Markdown converter.
- Use the combined Markdown ↔ HTML converter when you switch directions often.
- Build a table in seconds with the Markdown table creator, then paste it into your Markdown.
Privacy and security
Markdown conversion runs locally in your browser. Textavia does not need a server to convert your Markdown to HTML, so your content stays on your device.