📝 Markdown ↔ HTML

変換 Markdown to HTML or HTML to Markdown with live preview

🔒 画像がデバイスの外に出ることはありません。 すべての処理はmarked.js + Turndown.jsを使用してブラウザ内でローカルに行われます。アップロード、サーバー、追跡は一切ありません。

特長

  • Bidirectional Conversion — 変換 Markdown to HTML or HTML to Markdown — switch direction with one click.
  • Live Preview — See a rendered preview of your HTML output as you type or paste.
  • Copy & ダウンロード — Copy the output to clipboard or download as a file.
  • Sample コンテンツ — Load a sample to see how the conversion works before using your own content.

仕組み

  1. Choose direction — Select Markdown to HTML or HTML to Markdown conversion.
  2. Paste your content — Enter Markdown or HTML in the input panel.
  3. Copy or download — Get the converted output — copy to clipboard or download as a file.

活用例

  • 変換 README files to HTML for web publishing
  • Transform Markdown blog posts to HTML
  • 変換 HTML snippets to Markdown for documentation

よくある質問

Does it support GitHub-flavored Markdown?

Yes. The converter supports GFM features including tables, task lists, and fenced code blocks.

Is the HTML output clean?

Yes. The output is well-formatted, semantic HTML without unnecessary wrappers or inline styles.

関連ツール