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A Chrome extension that turns your browser tabs into a personal knowledge base — save tabs with context, auto-tag with AI, and visualize connections as a network graph.

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# 🗂️ naoTab — Your Personal Tab Knowledge Base

> 🇻🇳 [Xem phiên bản tiếng Việt](./README.vi.md)

A Chrome Extension (Manifest V3) that turns your browser tabs into an organized, searchable **personal knowledge base** — no server, no backend, everything runs locally inside the extension.

---

![naoTab Overview](https://raw.githubusercontent.com/bsquang/naotab/main/assets/screenshot-overview.png)

---

## ✨ Features

- **Save tabs with context** — add a summary, reason for saving, and tags to any tab
- **Brain Visualize** — D3.js force-directed graph; nodes = bookmarks, edges = shared tags; blue node = has summary, grey = no summary
- **List view** — searchable card list with full-text search across title, URL, reason, and tags
- **Node panel** — click any node or card to open a side panel with full details and inline editing
- **Exclude tags from graph** — temporarily hide a tag's connections without deleting it, to declutter the graph
- **AI integration** (optional, off by default) — auto-suggest tags and summaries via OpenAI, Claude, Groq, Ollama, OpenRouter, or any OpenAI-compatible provider
- **AI Suggest in panel** — re-run AI on any saved bookmark directly from its detail panel
- **AI Batch** — one-click AI processing for all currently visible/filtered nodes; skips nodes that already have a summary; live progress bar with real-time color update
- **SEO meta extraction** — reads page meta tags (og:description, keywords, author, etc.) on save; ~10× more token-efficient than scraping body text
- **Save whole window** — bulk-save all tabs in a window, each with its own meta tags captured
- **Obsidian export** — ZIP of `.md` files with YAML frontmatter, ready to open as an Obsidian vault
- **JSON export / import** — full backup and restore
- **Connected nodes** — node panel shows all bookmarks linked to the selected node (within current filter), click to navigate between them
- **Sidebar node list** — left sidebar split into Tags (top) + live node list (bottom), updates with filter/search in real time
- **Hover tooltips** — hover any node or sidebar item to preview title + summary instantly
- **100% local** — all data in `chrome.storage.local`, nothing leaves your machine except optional AI API calls

---

## 📦 Installation

1. Download or clone this repository
2. Open `chrome://extensions/`
3. Enable **Developer mode** (top right)
4. Click **Load unpacked** → select this folder
5. Pin the extension to your toolbar

---

## 🚀 Usage

### Saving tabs
| Action | How |
|---|---|
| Save active tab | Click **💾 Tab this** in the toolbar |
| Save any tab | Click **💾** next to a tab in the list |
| Save whole window | Click **💾 Save window** — captures meta for every tab |

Fill in summary (optional), reason (optional), and tags. If AI is enabled, click **✨ AI Suggest**.

### Brain Visualize (Graph view)
- Default view when opening the Knowledge Base
- 🔵 **Blue node** = has summary (AI or manual) · ⚪ **Grey node** = no summary yet
- **Click a node** → side panel opens; connected nodes highlight, others dim
- **Double-click a node** → opens the URL in a new tab
- **Click the background** → reset highlights, close panel
- **Drag nodes** to rearrange the layout

### Excluding a tag from the graph
In the left sidebar, hover over any tag → click **✕** to exclude it from graph edges. The tag turns red with strikethrough. Click **↩** to restore it. Useful when a generic tag like `github` connects too many unrelated nodes.

### Editing a bookmark
Click any node or card → edit summary, reason, and tags in the side panel → **💾 Save**.

### AI Suggest in the panel
If AI is configured, the **✨ AI Suggest** button appears in the panel. It uses the saved page meta to re-generate tags and summary.

### Settings
Click **⚙️** → choose a provider preset → enter API key and model → **🧪 Test connection** → **💾 Save Settings**.

---

## 🤖 AI Integration

| Provider | API Format |
|---|---|
| OpenAI, Groq, Ollama, OpenRouter, custom | OpenAI-compatible (`/chat/completions`) |
| Anthropic (Claude) | Native Anthropic API (`/messages`) |

AI reads only page meta tags (~75 tokens) instead of full page body (~750 tokens) — **10× more efficient**.

AI is **off by default**. Offline keyword + domain-based tag suggestions always work without any API key.

---

## 🗄️ Data Schema

```json
{
  "id": "1712345678901",
  "url": "https://...",
  "title": "Page title",
  "reason": "Why I saved this",
  "summary": "AI or manual summary",
  "tags": ["rust", "async"],
  "favIconUrl": "https://...",
  "pageMeta": {
    "description": "...",
    "ogTitle": "...",
    "keywords": "...",
    "author": "...",
    "siteName": "...",
    "ogType": "...",
    "ogImage": "...",
    "lang": "en",
    "canonical": "https://..."
  },
  "savedAt": "2024-01-01T00:00:00.000Z",
  "updatedAt": "2024-01-01T00:00:00.000Z"
}
```

---

## 🔒 Permissions

| Permission | Reason |
|---|---|
| `tabs` | Read title, URL, and favicon of open tabs |
| `storage` | Save bookmarks and settings locally |
| `unlimitedStorage` | Remove the default 10MB cap |
| `scripting` + `host_permissions` | Read page meta tags on demand |

---

## 🛠️ Development

After editing any file, open the popup and click **🔄** to reload the extension.

```
naoTab/
├── manifest.json              # Manifest V3
├── popup.html / popup.css / popup.js   # Extension popup
├── app.html / app.js          # Full-page Knowledge Base
├── settings.html / settings.js # AI provider settings
├── storage.js                 # Shared: bookmarks CRUD + settings + AI call
├── d3.min.js                  # D3.js v7 (bundled locally — CSP)
├── jszip.min.js               # JSZip (bundled locally — CSP)
└── icons/                     # Extension icons
```

---

## 🗺️ Roadmap

- [ ] Google Drive sync
- [ ] Dark mode
- [ ] Duplicate tab detector
- [ ] AI-powered bookmark grouping
- [ ] Browser history integration

---

## 📄 License

MIT — see [LICENSE](./LICENSE)

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