Last updated: July 4, 2026 · Provider: Tack and K
Your prompts never leave your device.
Everything you create is stored only in your own device's local browser storage.
The only thing that can ever leave your device is a license key string —
and only if you purchase and activate the optional Pro upgrade. On the free plan,
the extension performs zero network communication.
Created by you and stored locally only: prompt bodies, titles and tags, version history and notes, result notes, prompt chains, and extension settings. If you activate Pro: your license key and its validity status, also stored locally.
All of the above is stored exclusively in chrome.storage.local (your device's local storage). Your prompts are never stored on any external server or cloud.
None of your content is ever transmitted. The extension's source code contains exactly one network call site, used only for Pro license verification (§4); it sends only the license key string — never prompts, page contents, browsing data, or personal information. It makes no external API or LLM calls. If you never enter a license key, the extension makes no network requests at all.
Pro is an optional paid upgrade that removes the free-plan limits. If you use it:
Your data is never shared, sold, or provided to any third party.
No analytics, behavioral tracking, or ad-identifier collection. No third-party analytics tools are used.
| Permission | Use |
|---|---|
storage | Save your data locally on the device |
sidePanel | Show the main UI (side panel) |
contextMenus | Right-click "Save to PromptLab" on enabled sites |
scripting | Enable ChatGPT / Gemini support only after you opt in |
host: https://claude.ai/* | Save/insert in the claude.ai input field (default) |
optional: https://chatgpt.com/* | Only if you enable ChatGPT in settings |
optional: https://gemini.google.com/* | Only if you enable Gemini in settings |
It does not request <all_urls> ("read data on all sites"). It installs with access to claude.ai only. ChatGPT and Gemini are strictly opt-in per site: Chrome shows a confirmation dialog naming the site, and you can revoke access anytime.
Delete any data anytime in the extension, export it as JSON for backup, and remove your license key from the device with one click. Uninstalling removes all local data. To delete your license record from our server, contact us (§11).
The extension is not directed at children.
Changes are reflected by updating the "Last updated" date on this page. Significant changes will be noted in the extension's update notes.
For questions, contact the provider (Tack and K): tackk@tack-and-k.com
プロンプトをはじめ、作成したデータが端末の外に出ることはありません。 すべて端末内（chrome.storage.local）にのみ保存されます。端末の外に出る可能性があるのはライセンスキーの文字列だけで、それも有料アップグレード（Pro）を購入してキーを入力した場合のみ。無料版では一切のネットワーク通信を行いません。
Pro の決済は Stripe が処理し、当方がカード情報を受け取ることはありません。ライセンスサーバー（Cloudflare Workers）が保存するのはキー・プラン・期限・Stripe顧客IDのみで、プロンプト等を受信・保存することはありません。
第三者提供なし、解析・トラッキングなし。<all_urls> は要求せず、インストール時のアクセス先は claude.ai のみ。ChatGPT / Gemini はサイト単位のオプトイン（Chrome が確認ダイアログを表示、いつでも解除可）。データは拡張機能内でいつでも削除でき、エクスポートでバックアップ可、アンインストールで端末内データは全削除されます。サーバー上のライセンス記録の削除はお問い合わせください。