Markdown to HTML Converter

There isn't one single Markdown spec, which catches people off guard. The original 2004 Markdown is fairly minimal, while CommonMark formalized a stricter, more consistent version of the syntax, and GitHub Flavored Markdown adds its own extensions on top, tables, strikethrough, task lists, and automatic linking of bare URLs among them. This converter supports the common extended syntax, including tables and fenced code blocks, not just the bare-bones original spec.

Headers can be written two different ways in Markdown: ATX style, using one to six hash symbols before the text, or Setext style, underlining the text with = or - characters, though Setext only supports two heading levels. Most modern writing defaults to ATX headers since they're clearer and support all six levels.

Paste your Markdown into the left panel and the HTML output builds on the right as you type. Headers, bold and italic text, ordered and unordered lists, blockquotes, fenced code blocks, and both inline and reference-style links all convert correctly to their semantic HTML equivalents.

The output is unstyled, semantic HTML, h1 through h6 tags, p tags, ul and ol, and so on, with no inline CSS baked in, which is intentional, since your own stylesheet should control how the content actually looks once it's published. Everything converts locally in your browser, so a draft article or internal documentation page never gets uploaded anywhere just to be converted.