Markdown to HTML vs. HTML to Markdown: Which One Do You Need?

Two real, independent converters running in opposite directions — not the same logic reversed. Here's when each one is the right tool.

	Markdown to HTML	HTML to Markdown
What it does	Converts Markdown syntax — headings, lists, links, tables, code blocks — into real HTML markup	Converts HTML markup back into readable Markdown syntax
Engine	marked, a standard Markdown parser, producing complete HTML output	turndown, a standard HTML-to-Markdown converter, run in the opposite direction
Best for	Publishing Markdown content — READMEs, notes, docs — as a web page or HTML email	Turning a web page or HTML document into clean, editable Markdown for a wiki, README, or static site
Round-tripping	Converting to HTML and back to Markdown may not reproduce the exact original source, since HTML can express things Markdown can't cleanly represent	The same caveat applies in reverse — complex or non-standard HTML may simplify when converted to Markdown

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