PiiBlocker : Mask PII in AI Chatbots
Stop data leaks to AI chatbots. Detects and masks personal data before it reaches ChatGPT, Claude, and Gemini. 100% local.
As of June 2026, PiiBlocker : Mask PII in AI Chatbots has 28 users and a 5.00/5 rating from 5 reviews in the Productivity category.
Usersup 300.0 percent+300.0%
28
28
Ratingno change0%
5.00
5 reviews
Reviewsup 400.0 percent+400.0%
5
Version
1.1.9
Manifest V3
90-day change · In the last 90 days this extension 5 version updates.
History
10 snapshotsTracking since Apr 8, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 8, 2026 | 7 | 5.00 | 1 | 1.1.3 |
| Apr 19, 2026 | 8 | 5.00 | 1 | 1.1.4 |
| Apr 25, 2026 | 6 | 5.00 | 1 | 1.1.5 |
| May 2, 2026 | 10 | 5.00 | 4 | 1.1.5 |
| May 8, 2026 | 11 | 5.00 | 4 | 1.1.5 |
| May 13, 2026 | 13 | 5.00 | 4 | 1.1.5 |
| May 19, 2026 | 14 | 5.00 | 4 | 1.1.6 |
| May 25, 2026 | 16 | 5.00 | 4 | 1.1.8 |
| Jun 1, 2026 | 19 | 5.00 | 4 | 1.1.8 |
| Jun 7, 2026 | 19 | 5.00 | 5 | 1.1.8 |
| Now | 28 | 5.00 | 5 | 1.1.9 |
Changelog
- Jun 7, 2026name
PiiBlocker — Mask PII in AI Chatbots
PiiBlocker : Mask PII in AI Chatbots
- May 13, 2026name
PII Blocker - Mask Sensitive Data from AI Chatbots
PiiBlocker — Mask PII in AI Chatbots
- May 13, 2026short_description
Stop data leaks to ChatGPT, Claude & Gemini. Detects and masks names, cards, medical info & more. 100% local processing.
Stop data leaks to AI chatbots. Detects and masks personal data before it reaches ChatGPT, Claude, and Gemini. 100% local.
- Apr 19, 2026description
🛡️ STOP DATA LEAKS TO AI CHATBOTS 43% of workers paste sensitive data into ChatGPT without realising it (Source: National Cybersecurity Alliance, 2025-2026). Names, credit cards, medical records once it's sent, it's stored on someone else's server. PiiBlocker catches personal data before it leaves your browser. Everything runs locally. No servers. No data collection. 🎬 Watch the 60-second demo: https://www.youtube.com/watch?v=VpYqkC-_UVg HOW IT WORKS 1. Type normally into ChatGPT, Claude, or Gemini 2. PiiBlocker highlights detected personal data in real-time 3. Before sending, choose what to mask in a simple confirmation dialog 4. Critical data (credit cards, SSNs, API keys) is auto-protected 5. The AI responds with placeholders → PiiBlocker shows you the real data WHAT IT DETECTS (15+ TYPES) Credit card numbers (with validation), Social Security numbers, API keys and secrets (OpenAI, AWS, GitHub, etc.), passwords, names, addresses, phone numbers, emails, dates of birth, ages, salaries, medical conditions, bank account numbers, UK National Insurance numbers, and more. Plus you can manually mask anything we miss with right-click. PRIVACY BY DESIGN - All processing happens locally in your browser - Your data NEVER leaves your device - No servers — we literally don't have any - AES-256 encrypted storage with auto-expiring keys - One-click purge of all stored data FEATURES - Real-time PII detection using NER + regex - Auto-masking for critical data - Manual masking via right-click context menu - Response unmasking — placeholders swapped back seamlessly - Personal PII dictionary — teach it your name, it remembers - Works on ChatGPT, Claude, and Gemini FREE FOREVER No account required. No usage limits. No data collected. SUPPORT Website: https://www.piiblock.com Email: [email protected] GitHub: https://github.com/piiblocker-coder/privacyshield
STOP DATA LEAKS TO AI CHATBOTS 43% of workers paste sensitive data into ChatGPT without realising it (Source: National Cybersecurity Alliance, 2025-2026). Names, credit cards, medical records. Once it's sent, it's stored on someone else's server. PiiBlocker catches personal data before it leaves your browser. Everything runs locally. No servers. No data collection. Watch the 60-second demo: https://www.youtube.com/watch?v=VpYqkC-_UVg HOW IT WORKS 1. Type normally into ChatGPT, Claude, or Gemini 2. PiiBlocker highlights detected personal data in real time 3. Before sending, choose what to mask in a simple confirmation dialog 4. Critical data like credit cards, SSNs, and API keys is auto-protected 5. The AI responds with placeholders, and PiiBlocker shows you the real data 6. Missed something? Select any text and right-click to mask it manually WHAT IT DETECTS (15+ TYPES) Credit card numbers with validation, Social Security numbers, API keys and secrets (OpenAI, AWS, GitHub, and more), passwords, names, addresses, phone numbers, emails, dates of birth, ages, salaries, medical conditions, bank account numbers, UK National Insurance numbers, and more. PRIVACY BY DESIGN All processing happens locally in your browser. Your data never leaves your device. No servers. We literally don't have any. AES-256 encrypted storage with auto-expiring keys. One-click purge of all stored data. FEATURES Real-time PII detection using NER and regex patterns. Auto-masking for critical data. Manual masking via right-click context menu. Response unmasking with placeholders swapped back seamlessly. Personal PII dictionary that learns your specific data. Works on ChatGPT, Claude, and Gemini. Stays protected on long-running tabs. FREE CORE PROTECTION Core PII detection and masking is free. No account required. No usage limits. No data collected. SUPPORT Website: https://www.piiblock.com Email: [email protected] GitHub: https://github.com/piiblocker-coder/piiblocker
- Apr 19, 2026short_description
Stop data leaks to AI chatbots. Detects and masks personal data before it reaches ChatGPT, Claude, and Gemini. 100% local.
Stop data leaks to ChatGPT, Claude & Gemini. Detects and masks names, cards, medical info & more. 100% local processing.
- Apr 19, 2026name
PiiBlocker — Mask PII in AI Chatbots
PII Blocker - Mask Sensitive Data from AI Chatbots
- Apr 8, 2026description
- USE AI FEARLESSLY PiiBlocker automatically detects personal information — names, addresses, phone numbers, credit cards, SSNs, API keys, and more — as you type into ChatGPT, Claude, and other AI chatbots. Before your message is sent, PiiBlocker masks sensitive data with safe placeholders like [PERSON_A]. The AI gets your question without your real data. When the AI responds, PiiBlocker unmasks the placeholders so you see your information back — seamlessly. - HOW IT WORKS 1. Type normally into ChatGPT, Claude, or Gemini 2. PiiBlocker highlights detected personal data in real-time 3. Before sending, choose what to mask in a simple confirmation dialog 4. Critical data (credit cards, SSNs, API keys) is auto-protected 5. The AI responds with placeholders → PiiBlocker shows you the real data - WHAT IT DETECTS - Credit card numbers (with validation) - Social Security numbers - API keys and secrets (OpenAI, AWS, GitHub, etc.) - Passwords - Names, addresses, phone numbers, emails - Dates of birth, ages, salaries - Medical conditions - Bank account numbers - UK National Insurance numbers - And more — plus you can manually mask anything we miss - PRIVACY BY DESIGN - All processing happens locally in your browser - Your data NEVER leaves your device - No data is sent to our servers — we don't have servers - AES-256 encrypted storage with auto-expiring keys - One-click purge of all stored data - FEATURES - Real-time PII detection (15+ types) - Auto-masking for critical data - Manual masking for everything else - Response unmasking with variant matching - Right-click "Mask with PiiBlocker" for custom text - Personal PII dictionary — teach it your name, and it remembers - Works on ChatGPT, Claude, and Gemini - Extension popup with privacy score - FREE TO USE PiiBlocker is free. No account required. No data collected. - FOUND A BUG? We're a small team and every report helps. Email [email protected] or open an issue on GitHub. - SUPPORT Questions or feedback? Email: [email protected] Website: https://www.piiblock.com
🛡️ STOP DATA LEAKS TO AI CHATBOTS 43% of workers paste sensitive data into ChatGPT without realising it (Source: National Cybersecurity Alliance, 2025-2026). Names, credit cards, medical records once it's sent, it's stored on someone else's server. PiiBlocker catches personal data before it leaves your browser. Everything runs locally. No servers. No data collection. 🎬 Watch the 60-second demo: https://www.youtube.com/watch?v=VpYqkC-_UVg HOW IT WORKS 1. Type normally into ChatGPT, Claude, or Gemini 2. PiiBlocker highlights detected personal data in real-time 3. Before sending, choose what to mask in a simple confirmation dialog 4. Critical data (credit cards, SSNs, API keys) is auto-protected 5. The AI responds with placeholders → PiiBlocker shows you the real data WHAT IT DETECTS (15+ TYPES) Credit card numbers (with validation), Social Security numbers, API keys and secrets (OpenAI, AWS, GitHub, etc.), passwords, names, addresses, phone numbers, emails, dates of birth, ages, salaries, medical conditions, bank account numbers, UK National Insurance numbers, and more. Plus you can manually mask anything we miss with right-click. PRIVACY BY DESIGN - All processing happens locally in your browser - Your data NEVER leaves your device - No servers — we literally don't have any - AES-256 encrypted storage with auto-expiring keys - One-click purge of all stored data FEATURES - Real-time PII detection using NER + regex - Auto-masking for critical data - Manual masking via right-click context menu - Response unmasking — placeholders swapped back seamlessly - Personal PII dictionary — teach it your name, it remembers - Works on ChatGPT, Claude, and Gemini FREE FOREVER No account required. No usage limits. No data collected. SUPPORT Website: https://www.piiblock.com Email: [email protected] GitHub: https://github.com/piiblocker-coder/privacyshield
- Apr 8, 2026short_description
Use AI Fearlessly — detect and mask PII before sending to AI chatbots
Stop data leaks to AI chatbots. Detects and masks personal data before it reaches ChatGPT, Claude, and Gemini. 100% local.
Permissions & access
- Permissions
- storageactiveTabcontextMenusscripting
- Host access
- https://chat.openai.com/*, https://chatgpt.com/*, https://claude.ai/*, https://gemini.google.com/*
Screenshots
About
STOP DATA LEAKS TO AI CHATBOTS 43% of workers paste sensitive data into ChatGPT without realising it (Source: National Cybersecurity Alliance, 2025-2026). Names, credit cards, medical records. Once it's sent, it's stored on someone else's server. PiiBlocker catches personal data before it leaves your browser. Everything runs locally. No servers. No data collection. Watch the 60-second demo: https://www.youtube.com/watch?v=VpYqkC-_UVg HOW IT WORKS 1. Type normally into ChatGPT, Claude, or Gemini 2. PiiBlocker highlights detected personal data in real time 3. Before sending, choose what to mask in a simple confirmation dialog 4. Critical data like credit cards, SSNs, and API keys is auto-protected 5. The AI responds with placeholders, and PiiBlocker shows you the real data 6. Missed something? Select any text and right-click to mask it manually WHAT IT DETECTS (15+ TYPES) Credit card numbers with validation, Social Security numbers, API keys and secrets (OpenAI, AWS, GitHub, and more), passwords, names, addresses, phone numbers, emails, dates of birth, ages, salaries, medical conditions, bank account numbers, UK National Insurance numbers, and more. PRIVACY BY DESIGN All processing happens locally in your browser. Your data never leaves your device. No servers. We literally don't have any. AES-256 encrypted storage with auto-expiring keys. One-click purge of all stored data. FEATURES Real-time PII detection using NER and regex patterns. Auto-masking for critical data. Manual masking via right-click context menu. Response unmasking with placeholders swapped back seamlessly. Personal PII dictionary that learns your specific data. Works on ChatGPT, Claude, and Gemini. Stays protected on long-running tabs. FREE CORE PROTECTION Core PII detection and masking is free. No account required. No usage limits. No data collected. SUPPORT Website: https://www.piiblock.com Email: [email protected] GitHub: https://github.com/piiblocker-coder/piiblocker
Technical
- Version
- 1.1.9
- Manifest
- V3
- Size
- 210KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- nklghhkmhkmckonncilnaohlihfacoee
- Developer ID
- u3d4e61a60633c75f111f82d75b46fa61
- Developer Email
- [email protected]
- Created
- Mar 2, 2026
- Last Updated (Store)
- Jun 6, 2026
- Last Scraped
- Jun 7, 2026
- Website
- piiblock.com
- Support URL
- https://www.piiblock.com/support
- Privacy Policy
- https://www.piiblock.com/privacy
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