ChatWall - Anonymise & Mask Private Data (PII) in AI LLM prompts : ChatGPT…

Tracking since Apr 1, 2026.

Changelog

• Jun 8, 2026
  description

  ChatWall - The Ultimate AI Privacy Firewall & Anonymiser
  
  Secure your AI prompts and maintain digital sovereignty. Mask and anonymise sensitive private data locally on your device before sending it to ChatGPT, Gemini, or other LLMs.
  
  ChatWall is a privacy extension that ensures 100% local processing. We prevent private data leaks and ensure GDPR compliance through real-time anonymisation of PII (Personally Identifiable Information).
  
  Key Advantages:
  🛡️ 100% Local Masking: Your data is masked and anonymised locally on your device. Private data never leaves your browser unmasked.
  🔄 Smart Unmasking: Seamlessly restores original data in AI responses. Your workflow remains uninterrupted while the LLM works on anonymous tokens.
  📂 Transparent Code (Source Available): Our code is public and audit-ready on GitHub. Trust is earned through transparency—verify exactly how your privacy is handled.
  🚀 Real-Time PII Protection: Instantly detects and masks names, emails, phones, credit cards, and other private data as you type.
  🌐 Works with Major LLMs: Compatible with ChatGPT, Google Gemini,.. and many others.
  💼 Enterprise-Grade Security: Designed for professionals who need to ensure GDPR compliance while leveraging the power of modern AI.
  
  How it works:
  🔒 Masking: You type "[email protected]" ChatWall detects an email and sends "[EMAIL_1]" to the AI.
  🔓 Unmasking: When the AI replies " [EMAIL_1]", ChatWall automatically restores it to "[email protected]" on your screen.
  You work naturally with your real data, but the AI provider only ever sees the anonymous tokens.
  
  ✅ Why trust ChatWall?
  💻 Local-First Architecture: ChatWall is built so your data never leaves your device. All masking and anonymising processes happen strictly within your browser.
  🛡️ Securely Isolated Overlay: ChatWall runs in a separate protected layer on top of the website. Because it is technically isolated, the host website's code (JavaScript) cannot see, access, or read anything you type inside the ChatWall window.
  🔍 Total Transparency: We are "Source Available". You or your security team can audit our code to guarantee that your private data remains truly private.

  ChatWall - The Ultimate AI Privacy Firewall & Anonymiser
  
  Secure your AI prompts and maintain digital sovereignty. Mask and anonymise sensitive private data locally on your device before sending it to ChatGPT, Gemini, or other LLMs.
  
  ChatWall is a privacy extension that ensures 100% local processing (Natural Language Processing + Local AI Privacy Filter model). We prevent private data leaks and ensure GDPR compliance through real-time anonymisation of PII (Personally Identifiable Information).
  
  Key Advantages:
  🛡️ 100% Local Masking: Your data is masked and anonymised locally on your device. Private data never leaves your browser unmasked.
  🔄 Smart Unmasking: Seamlessly restores original data in AI responses. Your workflow remains uninterrupted while the LLM works on anonymous tokens.
  📂 Transparent Code (Source Available): Our code is public and audit-ready on GitHub. Trust is earned through transparency—verify exactly how your privacy is handled.
  🚀 Real-Time PII Protection: Instantly detects and masks names, emails, phones, credit cards, and other private data as you type.
  🌐 Works with Major LLMs: Compatible with ChatGPT, Google Gemini,.. and many others.
  💼 Enterprise-Grade Security: Designed for professionals who need to ensure GDPR compliance while leveraging the power of modern AI.
  
  How it works:
  🔒 Masking: You type "[email protected]" ChatWall detects an email and sends "[EMAIL_1]" to the AI.
  🔓 Unmasking: When the AI replies " [EMAIL_1]", ChatWall automatically restores it to "[email protected]" on your screen.
  You work naturally with your real data, but the AI provider only ever sees the anonymous tokens.
  
  ✅ Why trust ChatWall?
  💻 Local-First Architecture: ChatWall is built so your data never leaves your device. All masking and anonymising processes happen strictly within your browser.
  🛡️ Securely Isolated Overlay: ChatWall runs in a separate protected layer on top of the website. Because it is technically isolated, the host website's code (JavaScript) cannot see, access, or read anything you type inside the ChatWall window.
  🔍 Total Transparency: We are "Source Available". You or your security team can audit our code to guarantee that your private data remains truly private.

• Jun 8, 2026
  host_permissions

  https://chatwall.io/api/verify-license

  https://*.huggingface.co/*, https://*.hf.co/*, https://chatwall.io/api/verify-license

• Jun 8, 2026
  permissions

  contextMenus, clipboardRead, clipboardWrite, activeTab, storage, alarms

  contextMenus, clipboardRead, clipboardWrite, activeTab, storage, alarms, offscreen

Permissions & access

Permissions

contextMenusclipboardReadclipboardWriteactiveTabstoragealarmsoffscreen

Host access

https://*.huggingface.co/*, https://*.hf.co/*, https://chatwall.io/api/verify-license

Screenshots

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