What Tablif read on Mamorukun's site
Mamorukun describes itself as: “Mamorukun Mask sensitive details before sending them to AI”
- Price model: free tier
- Free tier: Free forever
- Stage: Live, no waitlist
What it is
Calls itself “Chrome extension”.
- Calls itself: Chrome extension
“Chrome extension”
What it costs
A free tier, free forever. Prices quoted: ¥0.
- Free plan: free forever
- Price: ¥0
“完全無料 (¥0)”
“本拡張機能のクライアント側基本機能（ブラウザ内でのローカル検知、マスキング、手元復元、ローカルファイル検査等）は、個人・法人を問わず、原則として無償（無料）でご利用いただけます。”
Who it sells to
In Japanese.
- Languages: Japanese
“Designed for Japanese workflows.”
How it runs
A browser extension. Runs locally and works offline. Distributed through the Chrome Web Store. No API. AI is a side feature. Built with Google Analytics.
- Kind: extension
- Runs where: on the device, offline
- Distributed via: Chrome Web Store
- API: no
- AI role: a side feature
- Analytics: Google Analytics
“Chrome extension”
“完全ローカル動作・外部送信ゼロ”
What it works with
Built on まもるくん. Names ChatGPT, Copilot and 5 more on its pages.
- Built on: まもるくん
- Names: ChatGPT · Copilot · Gemini · +4
“A free Chrome extension that checks text locally before you send it to ChatGPT, Gemini or Copilot.”
“Chrome内蔵AI（Gemini Nano）が文脈依存の氏名・傷病・機密情報を補助検出。”
What it offers as proof
Live, no waitlist. Try it without signing up. Publishes docs and a blog.
- Instant signup: yes
- Trial asks for: nothing
“まもるくんをChromeに追加 完全無料・Chrome Web Store公式”
“エンジニア向け 2026/09/06 ソースコードやAPIキー・パスワードをAIに渡すときの安全なマスキング手法 デバッグやレビュー時にAPIキーや環境変数、D -> https://mamoru.mojofull.com/blog/api-key-source-code-mask/”
Sources
Tablif read these pages, last on 4 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.
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