AI Guardrail

Tracking since Apr 16, 2026.

Changelog

• Apr 16, 2026
  description

  🛡️ AI Guardrail automatically detects UK personal data as you type or paste into AI assistants, email, and forms — then lets you redact it with one click before it's sent.
  
  ── WHAT IT DETECTS ──
  • Full names (with context awareness)
  • Email addresses
  • UK phone numbers (+44 and 07xxx formats)
  • NHS numbers
  • National Insurance (NI) numbers
  • UK postcodes
  • Sort code + account number (bank details)
  • UK VAT numbers
  
  ── HOW IT WORKS ──
  1. You type or paste text into any AI chat, email, or form
  2. AI Guardrail scans for UK personal data in real time
  3. A popup shows exactly what was found and what it will be replaced with
  4. Click ✓ Update to redact all PII instantly — or Ignore to dismiss
  5. Your text is replaced with safe placeholders like [NAME_1], [NHS_NUMBER_1]
  
  ── WORKS ON ──
  • ChatGPT (chat.openai.com)
  • Google Gemini
  • Perplexity AI
  • Claude (claude.ai)
  • Gmail (compose)
  • Any website with a text input or chat box
  
  ── PRIVACY FIRST ──
  ✓ 100% local processing — your text never leaves your browser
  ✓ No accounts, no sign-up, no cloud API
  ✓ No data stored or transmitted
  ✓ Open source and auditable
  ✓ Works offline
  
  ── BUILT FOR ──
  Healthcare workers, legal professionals, HR teams, customer support agents — anyone who handles sensitive UK personal data and uses AI tools daily.
  
  Stop accidentally sharing patient names, NHS numbers, or client details with AI systems. AI Guardrail catches it before you send.

  🛡️ AI Guardrail: The Ultimate UK PII Shield for AI
  
  AI Guardrail automatically detects sensitive UK personal data as you type or paste into AI assistants, enterprise tools, and web forms—empowering you to redact it with a single click before it ever leaves your browser.
  
  🏆 MILESTONE REACHED: Proudly protecting users across the UK healthcare, legal, and HR sectors!
  
  🔍 WHAT IT DETECTS
  
  - Physical Addresses: UK street names, house numbers, and apartment details.
  - Full Names: Intelligent detection with context awareness.
  - National Identity: Full support for National Insurance (NI) and NHS Numbers (with Mod-11 validation).
  - Financial Data: Combined Sort Code + Account Number detection and Payment Card validation.
  - Contact Info: Intelligent email and UK phone number detection (+44 and 07xxx).
  - Official IDs: UK Passport, Driving Licence, and VAT registration numbers.
  - Location: Precise UK Postcode matching.
  
  💎 PREMIUM FEATURES (v1.0.4)
  
  1. Zero-Drift Highlights: Powered by the Native Browser Highlight API. Underlines stay perfectly synced with your text even while scrolling or resizing.
  2. Smart Redaction: Replace all risks instantly with safe placeholders like [NAME_1] or [ADDRESS_1] with a single click.
  3. Hybrid Detection: Combines advanced regex patterns with Chrome’s experimental On-Device AI for maximum accuracy without data transmission.
  4. Local Dashboard: View aggregate stats and risk categories via the sleek Glassmorphism extension popup.
  
  🌐 COMPATIBILITY
  
  AI Guardrail is designed to work seamlessly across your favorite web-based platforms, including:
  - Major AI Chat Interfaces (Generative AI assistants and LLM platforms)
  - Enterprise Productivity Tools (Messaging, CRM, and Helpdesk platforms)
  - Any Web Input: Works on standard text areas and sophisticated rich-text editors.
  
  🔒 PRIVACY BY DESIGN
  
  - 100% Local Processing: Your text never leaves your browser for scanning.
  - No Cloud APIs: Works entirely on your device with zero data transmission.
  - Zero Data Retention: No accounts, no sign-ups, and no prompt history stored.
  - Minimal Permissions: We only ask for what is strictly necessary (Storage and Clipboard).
  
  🏛️ BUILT FOR
  
  Healthcare Workers, Legal Professionals, HR Teams, and Support Agents who need to ensure compliance while utilizing the power of AI.
  
  Stop accidentally sharing patient names, clinical details, or client addresses. AI Guardrail catches it before you send.

• Apr 16, 2026
  short_description

  UK PII redactor. Detects names, emails, phones, postcodes, NHS numbers, NI numbers, bank details in AI chats. 100% local.

  Privacy-first PII redaction for AI chats and web tools. Detects UK names, emails, bank details and more—100% local.

• Apr 16, 2026
  permissions

  activeTab, storage, clipboardWrite

  storage, clipboardWrite

Permissions & access

Permissions

storageclipboardWrite

Host access

None declared

Screenshots

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