HTML into clean Markdown
This is the migration direction: a CMS export, a copied web-page section or a legacy page turned into clean CommonMark for a docs-as-code repo or a notes app. The output uses the usual conventions — # ATX headings, fenced code blocks, dash bullet lists — so it renders correctly on GitHub and in every common Markdown tool.
Conversion runs live in your browser as you type, and nothing is uploaded. Need the other direction? The same tool turns Markdown into HTML with a rendered preview, and DOCX to HTML handles Word documents.