Markdown to HTML Converter Online
Convert Markdown to semantic HTML instantly in your browser. This free converter processes everything client-side, so your content never leaves your device.
HTML ↔ Markdown Converter
Convert between HTML and Markdown in either direction. Handles headings, lists, code blocks, tables, links, and more.
About HTML ↔ Markdown Converter
- HTML → Markdown — converts semantic HTML elements into clean, readable Markdown syntax.
- Markdown → HTML — parses Markdown into standards-compliant HTML output.
- Heading styles — choose ATX (
# Heading) or Setext (underlined) for h1/h2. - Swap — click Swap to reverse direction and chain conversions, moving the output into the input.
- Tables, code blocks, links — all common formatting elements are preserved during conversion.
- Everything runs in your browser — no data is sent over the network.
Why convert Markdown to HTML?
Markdown is great for writing, but web browsers render HTML. Converting Markdown to HTML is essential when publishing blog posts, creating email newsletters, embedding content in web pages, or generating documentation. The resulting HTML is clean, semantic, and ready to style with CSS.
Common use cases for Markdown to HTML conversion
Writers and developers convert Markdown to HTML for CMS publishing, email templates, static site content, and documentation sites. It is also useful when you need to preview how your Markdown README or documentation will look when rendered, or when you need to embed formatted content in an application.
Frequently Asked Questions
Does the converter support GitHub Flavored Markdown?
Yes. This tool supports GitHub Flavored Markdown (GFM) extensions including tables, task lists, strikethrough, and fenced code blocks with syntax highlighting.
Is the generated HTML safe to use directly?
The converter produces clean, semantic HTML. However, if you are embedding user-generated Markdown in a web application, you should always sanitize the output to prevent XSS attacks before inserting it into the DOM.