Convert selected HTML (tables, text) to Markdown optimized for AI agents and copy to clipboard.
Users
5
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#270K
#225K among extensions
Version
1.0.0
updated 12 May 2026
Users
monthly, 5 months
Latest, 18 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 5 months
Latest, 18 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Copy as Markdown for AI
## Detailed Description
### English
**Copy as Markdown for AI** is a lightweight Chrome extension that converts any selected HTML content — especially tables — into clean, AI-optimized Markdown. Just select, right-click, and paste into ChatGPT, Claude, or any editor.
**Why this extension?**
AI agents (ChatGPT, Claude, etc.) understand Markdown-formatted tables far better than raw HTML or plain text. When you paste a clean GFM table, the AI can immediately grasp the structure and relationships in your data.
**Features:**
- **One-click conversion:** Select content → right-click → "Copy as Markdown for AI" → paste anywhere
- **Table-aware:** Automatically expands merged cells (rowspan/colspan) into clean GFM tables
- **Noise-free output:** Removes scripts, styles, hidden elements, buttons, and other UI clutter
- **Absolute URLs:** Converts relative links to absolute URLs so AI can follow references
- **Metadata header:** Auto-prepends source URL, page title, and timestamp
- **100% local:** No data leaves your browser. No accounts, no tracking.
**Perfect for:**
- Sharing web table data with AI assistants
- Extracting structured information from web pages
- Converting documentation into LLM-friendly context
- Researchers, developers, and anyone who works with AI tools
**How to use:**
1. Select any content on a web page
2. Right-click → "Copy as Markdown for AI"
3. Paste into ChatGPT, Claude, or your editor
---
### 日本語
**「Copy as Markdown for AI」** は、ウェブページ上の選択範囲(特にテーブル構造)を AI エージェントが理解しやすい Markdown に変換し、クリップボードにコピーする軽量 Chrome 拡張機能です。
**特徴:**
- **ワンクリック変換:** 範囲選択 → 右クリック → 「Copy as Markdown for AI」→ そのまま貼り付け
- **テーブル対応:** rowspan/colspan の結合セルを自動展開し、GFM準拠の綺麗なテーブルに整形
- **ノイズ除去:** script/styleタグ、非表示要素、ボタンなどのUIノイズを自動除去
- **絶対URL化:** 相対パスを絶対URLに変換。AIが参照先を辿れます
- **メタデータ付与:** 取得元URL、ページタイトル、日時をMarkdownの先頭に自動挿入
- **完全ローカル処理:** データは一切外部に送信されません。アカウント登録不要、トラッキングなし
**こんな方に:**
- Webページの表データをAIに渡したい
- 構造化された情報を素早く抽出したい
- ドキュメントをLLM用のコンテキストに変換したい
**使い方:**
1. ページ上の変換したい範囲を選択
2. 右クリック → 「Copy as Markdown for AI」
3. ChatGPTやClaude、エディタに貼り付け