Running on your device · 0 bytes uploaded

Markdown ⇄ HTML converter

Render Markdown to HTML or convert HTML back to Markdown — GFM tables and strikethrough included — with a DOMPurify-sanitized, sandboxed preview. Everything runs in the unified pipeline in your tab.

Markdown in
GFM: tables, strikethrough, autolinks, task lists
What this tool does not do
  • Markdown → HTML drops raw HTML by design (no allowDangerousHtml) — the fold list names it when it happens.
  • HTML → Markdown is lossy by nature: divs flatten, spans unwrap, inline styles vanish — every fold is listed, none silent.
  • No syntax highlighting, footnotes, or math extensions — GFM is the whole grammar here.
Nothing in yet

Paste, drop, or type to begin. Everything stays on this device.

paste one side, convert to the other