PII Firewall Edge

What it does

Building with AI? Your users' data is at risk. Every API call to OpenAI, Claude, or Gemini could be leaking SSNs, emails, phone numbers, and 150+ types of PII. Compliance teams are waking up to this. Are you ready? PII Firewall Edge is a zero AI, zero-storage privacy API that runs on Cloudflare's edge network. One API call sanitizes text before it hits any LLM.

Detect and redact 152 PII types in 5ms. No AI models, no data retention. Protect customer data before sending to LLMs. GDPR and CCPA compliant. Starting at $9/month.

Redact sensitive data before sending to LLMs. 5ms latency. Deterministic algorithms. Your data never trains external models. * This demo runs locally in your browser. The API processes 152 PII types. const response = await fetch( 'https://pii-firewall-edge.p.rapidapi.com/v1/redact/fast', { method: 'POST', headers: { 'Content-Type': 'application/json', 'X-RapidAPI-Key': 'YOUR_API_KEY' }, body: JSON.stringify({ text: 'Email: [email protected], SSN: 123-45-6789' }) } ); const { redacted, detections } = await response.json(); View Full Examples on GitHub Simple Pricing Start free. Scale as you grow. Free tier includes 500 requests/month. No credit cardfrom pii-firewall-edge-web.vercel.app

In the maker’s words, at launch

Hi HN, I built PII Firewall because I got tired of watching "privacy" APIs secretly pipe user data to cloud AI models. If you're using GPT/Claude to redact PII, you're literally giving the AI your PII. What makes this different: - Zero AI – deterministic regex + 30 checksum validators (Luhn, Verhoeff, Mod…

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  Local Privacy Firewall-blocks PII and secrets before ChatGPT sees themDec 2025 · github.com · ▲111

  OP here. I built this because I recently caught myself almost pasting a block of logs containing AWS keys into Claude. The Problem: I need the reasoning capabilities of cloud models (GPT/Claude/Gemini), but I can't trust myself not to accidentally leak PII or secrets. The Solution: A Chrome extension that acts as a local middleware. It intercepts the prompt and runs a local BERT model (via a Python FastAPI backend) to scrub names, emails, and keys before the request leaves the browser. A few notes up front (to set expectations clearly): Everything runs 100% locally. Regex detection…

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  Phala Cloud2025 · phala.com · ▲105

  Zero-trust cloud for safe AGI

• AL
  A local-first, reversible PII scrubber for AI workflowsDec 2025 · medium.com · ▲38

  Hi HN, I’m one of the maintainers of Bridge Anonymization. We built this because the existing solutions for translating sensitive user content are insufficient for many of our privacy-concious clients (Governments, Banks, Healthcare, etc.). We couldn't send PII to third-party APIs, but standard redaction destroyed the translation quality. If you scrub "John" to "[PERSON]", the translation engine loses gender context (often defaulting to masculine), which breaks grammatical agreement in languages like French or German. So we built a reversible, local-first pipeline for Node.js/Bun. Here…

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  Protecto SaaSDec 2025 · protecto.ai · ▲4

  Give enterprises the confidence to connect real data to your agent. Protecto automatically scans, masks, and secures sensitive data.

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  NICH: GPT Anonymizer2025 · nichtech.uk · ▲14

  I built NICH after realising I couldn't use ChatGPT for my conflict research work without risking data leaks. It's a browser extension that: - Anonymises names, emails, and addresses in one click - Preserves context for AI to understand - Restores original data in AI responses - 100% browser-based (no cloud, data never leaves your device) Built it for researchers, lawyers, HR professionals or simply anyone handling confidential data who wants AI assistance without compliance nightmares. Free to use: https://www.nichtech.uk Would love feedback from the HN community!

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  Local personal data redaction for any AI toolsJun 2026 · github.com · ▲12

  I built the desktop app that detects and redacts personal data (or PII) locally without sending any text to server. It supports rule-based filtering and AI model-based redaction (eg openai privacy filter). It's open source and free. Please check out the repo and https://pii-gui.vercel.app/

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