Security●●●Banger
PrivacyShield – Mask your PII before it reaches ChatGPT/Claude
Solves a real, growing pain (PII leakage to AI APIs) with zero-friction UX.
Solve My ProblemSlick
BuddhikaR
203mo ago
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PrivacyShield – Mask your PII before it reaches ChatGPT/Claude
by BuddhikaR·Mar 3, 2026·1 point·1 comment
AI Analysis
●●SolidSolve My ProblemDark HorseSlick
Local PII masking for ChatGPT—free and zero-server, but detection accuracy unverified.
Strengths
- •Genuinely solves a painful, real problem: accidental PII leakage to third-party AI APIs.
- •100% local processing with zero servers removes trust friction—verifiable in DevTools.
- •Frictionless UX: one-click install, passive detection, review-before-send workflow respects user agency.
Weaknesses
- •PII regex detection (15+ types claimed) is brittle—high false negatives on obfuscated formats, no ML-backed validation shown.
- •v0.1 with acknowledged bugs; no benchmarks on detection rates or false positive impact on usability.
Category
Target Audience
Individual AI users, freelancers, professionals handling sensitive data
Similar To
Ghostery · Privacy Badger · DuckDuckGo extension
Post Description
Hi HN, I built this because I kept pasting client data and API keys into ChatGPT without thinking.
It detects 15+ types of PII as you type, masks them with placeholders like [PERSON_A] before sending, then unmasks the AI's response. Everything runs locally — no servers, no data collection, zero network requests. You can verify in DevTools.
Built as a solo project using Claude Code.
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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