ChatWall - Anonymise & Mask Private Data for AI by StarObject

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:
🛡️ Client-Side Masking: Your data is masked locally on your device. Sensitive data never leaves your browser.
🔓 Smart Unmasking: Seamlessly restores original data in AI responses, so your workflow remains uninterrupted.
📂 Open Source: Our code is public and audit-ready. Trust is earned through transparency—you can verify exactly how your data is handled.
🔒 Real-Time Protection: Instantly detects names, emails, phones, credit cards, and other private data as you type.
✅ Works with major AI websites: Including ChatGPT, Gemini, and many others ...
💼 Enterprise-Grade Security: Designed for professionals and teams who need to ensure GDPR/CCPA compliance while leveraging the power of modern AI.

How it works:
🔒 Masking: You type "john@doe.com" ChatWall detects an email and sends "[EMAIL_1]" to the AI.
🔓 Unmasking: When the AI replies " [EMAIL_1]", ChatWall automatically restores it to "john@doe.com" on your screen.
You work naturally with your real data, but the AI provider only ever sees the anonymous tokens.

Why trust us? ✅
💻 Local-First Architecture: ChatWall is built so your data never leaves your device. All masking and anonymization processes happen strictly within your browser.
🛡️ Securely Isolated: Your input is processed in a secure sandbox, making it invisible to the host AI website. While session data is wiped instantly when you close your tab, your persistent favorites remain stored strictly on your own disk.
🔍 Total Transparency: Trust is earned through transparency. Our code is "Source Available" on GitHub, allowing you or your security team to verify exactly how your data is handled