Markdown to HTML Converter

Yes. The Direction select at the top switches to HTML to Markdown, which parses your markup with the browser DOM parser and maps headings one through six, paragraphs, bold, italic, links, ordered and unordered lists including nested ones, inline code, code blocks, and blockquotes into clean Markdown. Labels and the copy button switch to match the chosen direction.

The preview is filtered through a self-hosted copy of DOMPurify, so script tags and event handler payloads in the input never execute. If the sanitizer fails to load, the tool falls back to escaped plain text instead of injecting raw markup. The reverse direction strips script and style elements entirely and builds its Markdown from text content only.

In the Markdown to HTML direction you can pretty print the markup with indentation, prepend a basic CSS style block, and open links in a new tab, which adds the proper target and rel attributes. These checkboxes are hidden while converting HTML to Markdown because they only shape generated HTML.

Headings, bold and italic in both asterisk and underscore forms, strikethrough, inline code, fenced code blocks, links, images, unordered and ordered lists, blockquotes, and horizontal rules all convert, with a live line and character count under the input. The Sample button inserts a demonstration document that exercises the features.

No. Parsing, conversion, and sanitization all execute client-side in the current tab, so your documents stay on your device whether you convert Markdown or HTML.