Free Online Tool

Markdown → HTML Converter

Convert Markdown to HTML with live preview

No data is sent to any server — everything runs client-side

Markdown Input

Write or paste Markdown

Input

Output

HTML code or rendered preview

Output

What Is Markdown?

Markdown is a lightweight markup language created by John Gruber in 2004. It uses simple text formatting conventions — asterisks for bold/italic, hashes for headings, dashes for lists — that are easy to read in plain text and convert cleanly to HTML. It's become the de facto writing format for technical documentation, README files, static site generators, and developer communication.

Markdown is used by GitHub (README.md, issues, PRs), Stack Overflow, Reddit, Discord, Notion, Obsidian, Jekyll, Hugo, Docusaurus, and countless other platforms. Learning Markdown syntax is one of the highest-leverage skills for any developer.

Markdown Syntax Quick Reference

ElementMarkdownHTML
Heading 1# Heading<h1>
Bold**bold**<strong>
Italic*italic*<em>
Link[text](url)<a href>
Image![alt](url)<img>
Code (inline)`code`<code>
Code block```lang ... ```<pre><code>
Unordered list- item<ul><li>
Ordered list1. item<ol><li>
Blockquote> quote<blockquote>
Horizontal rule---<hr>

When to Use This Tool

README Previews

Preview how your README.md will render before pushing to GitHub. Check headings, links, code blocks, and images.

Email & Newsletter Content

Write content in Markdown for speed, then convert to HTML for email templates that require HTML formatting.

Blog Post Authoring

Author posts in Markdown and get the HTML for CMSes that accept raw HTML input.

Documentation Generation

Convert Markdown documentation to HTML snippets for embedding in non-Markdown platforms.

Related Tools

How to Use the Markdown → HTML Converter

1

Write or paste your Markdown

Enter your Markdown content in the left panel. You can use any standard Markdown syntax — headings, bold, italic, lists, links, images, code blocks, and blockquotes.

2

View the HTML output

The HTML output is generated instantly as you type. Switch to the "HTML Code" tab to see the raw HTML, or the "Preview" tab to see it rendered.

3

Copy the HTML

Click "Copy HTML" to copy the generated HTML to your clipboard. The button confirms the copy with a green checkmark.

4

Use in your project

Paste the HTML into your email template, CMS, or web page. All standard Markdown elements are converted to their semantic HTML equivalents.

Frequently Asked Questions

What Markdown flavour does this converter use?

This tool uses the marked.js library which implements the CommonMark specification plus GitHub Flavored Markdown (GFM) extensions including tables, strikethrough, and task lists.

Does it support fenced code blocks with syntax highlighting?

Yes, fenced code blocks (```language) are converted to <pre><code class="language-..."> elements. You can add a syntax highlighting library like highlight.js or Prism to your project to colorize the output.

What is the difference between Markdown and MDX?

MDX is Markdown + JSX — it lets you embed React components inside Markdown files. Standard Markdown only produces HTML. This tool converts standard Markdown to HTML.

Can I use this for email newsletters?

Yes. Write content in Markdown for speed, then copy the HTML output to paste into your email builder. Note that email clients have limited CSS support, so complex styling may need adjustment.

Is the conversion lossless?

Yes — all semantic content is preserved. Standard Markdown converts deterministically to HTML. Headings become <h1>–<h6>, bold becomes <strong>, italic becomes <em>, and so on.

Further Reading

Built by JDApplications