Security●●Solid
PrivacyShield – Mask your PII before it reaches ChatGPT/Claude
Local PII masking for ChatGPT—free and zero-server, but detection accuracy unverified.
Solve My ProblemDark HorseSlick
BuddhikaR
113mo ago
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PrivacyShield – Mask your PII before it reaches ChatGPT/Claude
by BuddhikaR·Mar 2, 2026·2 points·0 comments
AI Analysis
●●●BangerSolve My ProblemSlick
Solves a real, growing pain (PII leakage to AI APIs) with zero-friction UX.
Strengths
- •Detects 15+ PII types and auto-unmasks responses so users see real data back
- •100% local processing with AES-256 encrypted mappings means genuine privacy; no servers or data collection
Weaknesses
- •Chrome-only as of v0.1; Firefox and Safari support unclear
- •Detection accuracy and false-positive rates not disclosed; edge cases around partial card numbers untested
Category
Target Audience
Freelancers, lawyers, doctors, developers, and anyone pasting sensitive data into AI chatbots.
Similar To
Privy · DLP tools like Forcepoint · Burp Suite intruder (enterprise PII masking)
Post Description
Hi HN, I built this because I kept pasting sensitive info into ChatGPT without thinking client names, financial details, API keys.
PrivacyShield detects 15+ types of PII as you type, masks them with placeholders like [PERSON_A] before sending, then unmasks the AI's response so you see your real data back.
Everything runs locally. No servers, no data collection. AES-256 encrypted mappings that auto-expire.
Chrome Web Store: https://chromewebstore.google.com/detail/privacyshield/nklgh...
This is v0.1 — would love feedback. Bugs: [email protected] or GitHub issues.
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