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Paste customer data into ChatGPT — the AI sees [[PERSON_1]] and [[EMAIL_ADDRESS_1]]. When you copy the response, placeholders are replaced with the originals.

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Supported Platforms

  • ChatGPT (chatgpt.com)
  • Claude (claude.ai)
  • Google Gemini (gemini.google.com)

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How It Works

  1. Paste — You paste text containing PII into the chat input
  2. Mask — The extension detects and masks PII via your local PasteGuard server
  3. Chat — The masked text is inserted into the chat. The AI only sees placeholders.
  4. Copy — When you copy the AI’s response, placeholders are replaced with the original values
Placeholder numbering stays consistent across messages in the same conversation. Streamed responses are highlighted in real-time.

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Requirements

The extension needs PasteGuard running locally: 
docker run --rm -p 3000:3000 ghcr.io/sgasser/pasteguard:en
See Quickstart for setup details.

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Beta

The browser extension is in beta. Open source (Apache 2.0).

Join the Beta

Get early access to the browser extension