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Show HN: Local Privacy Firewall-blocks PII and secrets before ChatGPT sees them

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PrivacyFirewall (Local AI Privacy Shield / Local LLM DLP)

👋 If you're trying PrivacyFirewall, please star the repo!

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PrivacyFirewall is a local-first PII and secrets firewall for AI tools like ChatGPT, Claude, and Gemini.It blocks risky paste events, warns as you type, and (optionally) uses a lightweight on-device Transformer model for deeper PII detection.

🔒 **No data ever leaves your machine.**Everything runs locally in your browser or through an optional local API.You can verify this by inspecting the network panel and reading the open-source code.

🚨 Why This Project Exists

Modern AI tools make it extremely easy to leak sensitive information:

Emails & phone numbers

API keys & credentials

Customer or employee data

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