PISIGuard: Protect your personal and sensitive info when you chat with AI
Summary
PISIGuard is a browser extension designed to detect and mask personal and sensitive information before it reaches AI chat services. It runs entirely locally in the browser, replacing data such as names, emails, phone numbers, passwords, and API keys with placeholders, and restores the originals in the AI's replies. The project emphasizes privacy, minimal permissions, no telemetry, and provides install/build instructions including a Firefox add-on and GitHub-based builds.