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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 → HTMLHTML → MarkdownMarkdownConvert

- 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

Next door in Text

- Markdown table (/text/markdown-table)
- JSON Converter (/json/convert)
All text tools (/text)

Canonical HTML: https://nutter.tools/text/markdown
Markdown version: https://nutter.tools/text/markdown/index.md
Plain-text version: https://nutter.tools/text/markdown/index.txt
Agent index: https://nutter.tools/llms.txt