How to Convert Markdown to HTML: Methods and When to Use Each

Your Options for Markdown to HTML Conversion

When you need to convert markdown to HTML, you have a few different approaches. The right one depends on whether you need a one-off conversion, a repeatable process, or a build-time pipeline.

Browser tool (like md0's markdown-to-HTML converter): paste in markdown, copy HTML. No install, no setup. Good for one-off conversions and checking what your markdown will look like as HTML.

Command-line tools (like pandoc, marked, commonmark): scriptable and reproducible. Good for automating conversion as part of a workflow.

Build-time processing (Next.js, Jekyll, Hugo, Gatsby): markdown is processed during the build and compiled to static HTML. Good for sites and documentation where the markdown lives in a Git repo.

For quick conversions, md0's tool is the fastest path.

How the md0 Converter Works

Paste or type your markdown into the editor
HTML appears in real-time in the output pane
Copy the HTML or download it as an .html file

The converter uses GitHub Flavored Markdown (GFM), which adds support for tables, task lists, strikethrough, and autolinks on top of standard markdown. This means your GFM-specific syntax converts correctly, not just the CommonMark baseline.

Everything runs client-side. Your markdown is never uploaded.

What the Output Looks Like

Standard markdown:

## Getting Started

Install the package:

\`\`\`bash
npm install my-package
\`\`\`

See the [documentation](https://example.com) for full details.

Converts to:

<h2>Getting Started</h2>
<p>Install the package:</p>
<pre><code class="language-bash">npm install my-package
</code></pre>
<p>See the <a href="https://example.com">documentation</a> for full details.</p>

The output is clean HTML5 with no inline styles and no wrapper divs unless you ask for them. You apply your own CSS.

Common Use Cases

Pasting into a CMS. WordPress, Ghost, and most other CMSes let you switch to an HTML view. If you wrote your content in markdown, convert it first and paste the HTML in.

Static site generators without markdown support. If your SSG expects HTML fragments, convert your markdown and use the output as a partial.

Email HTML. Draft your newsletter in markdown (it's faster), then convert to HTML for your email platform. You'll still need to inline your CSS, but the structure will be correct.

Checking output before committing. If you want to verify that your markdown will render as expected HTML before pushing it to a repo, the converter gives you an instant preview.

Differences Between Markdown Processors

Not all markdown-to-HTML converters produce identical output. There are a few things to watch for:

Spec compliance. CommonMark is the most consistent specification. If your target environment uses a different processor, test with a sample.

Extended syntax. GFM tables, task lists, and strikethrough are not in CommonMark. They require a processor that explicitly supports them. md0's converter supports GFM.

Sanitization. Some converters strip or escape inline HTML in markdown. This matters if you rely on raw HTML blocks in your markdown.

Going the Other Direction

If you're starting from HTML and need markdown, there's an HTML to markdown converter for that. Useful when you want to pull content out of an existing web page and work with it in markdown.

Convert Your Markdown

Open the markdown-to-HTML converter and paste in your markdown. The HTML output is ready to copy in seconds.