Is the Markdown to HTML converter free?

Yes, completely free with no signup required.

All conversion happens in your browser using the marked library. Nothing is sent to any server.

What Markdown features are supported?

Headings, paragraphs, bold, italic, strikethrough, links, images, ordered and unordered lists, code (inline and fenced blocks), blockquotes, horizontal rules, and tables (GFM syntax) are all supported.

GFM stands for GitHub Flavored Markdown — a widely used Markdown superset that adds tables, task lists, and strikethrough on top of standard CommonMark Markdown. This tool uses marked with GFM enabled.

Can I use the output HTML in a web page?

Yes. The HTML output is clean, semantic markup. Note that it does not include a full HTML document shell (no , , tags) — paste it inside an existing page's content area.

Is the preview safe from XSS?

The preview pane renders HTML in an isolated iframe-like sandbox using dangerouslySetInnerHTML. For production use, always sanitize the HTML output before inserting it into a web page that accepts user-supplied Markdown.

Convert Markdown to HTML Online Free

Paste Markdown and instantly see the rendered HTML output. Live preview and raw HTML view. Free, no signup, runs entirely in your browser.

Markdown input

Output

Preview appears here…

How to Convert Markdown to HTML

1
Paste your Markdown
Type or paste Markdown into the left input box. The rendered HTML preview and raw HTML output update live as you type.
2
Switch between Preview and HTML
Click "Preview" to see how the output renders in a browser, or "HTML" to see the raw HTML markup ready to copy.
3
Copy the HTML
Click "Copy HTML" to copy the raw HTML output to your clipboard.

Markdown is a lightweight markup language designed to be readable as plain text while converting cleanly to HTML for web display. It was created by John Gruber in 2004 and is now the dominant format for README files, documentation, blog content, and technical writing.

How this tool works: Conversion uses marked, a fast, spec-compliant Markdown parser supporting CommonMark and GitHub Flavored Markdown (GFM). The output is semantic HTML: headings become <h1>–<h6>, bold becomes <strong>, lists become <ul> or <ol>, and fenced code blocks become <pre><code>.

Need the reverse? Use the HTML to Markdown tool to convert HTML back to Markdown.

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