PISIGuard: Protect your personal and sensitive info when you chat with AI
PISIGuard is a browser-based tool designed to automatically mask sensitive personal information before it is sent to AI chat services. It replaces data like names and API keys with placeholders locally, ensuring that private information is never exposed to external AI servers.
Why it matters
As AI adoption grows, protecting user privacy and preventing data leaks of sensitive information has become a critical concern for both individuals and enterprises.
Protect your personal and sensitive info when you chat with AI
PISIGuard : P ersonally I dentifiable & S ensitive I nformation Guard
demo.webm I built PISIGuard because I've been horrified at how much personal & sensitive information people (including myself) are feeding AI on daily basis. It is cumbersome to censor information by hand, so obviously very few do that at varying degrees of consistency. I wanted something practical that will hide personal & sensitive data, and of course without routing them through yet another server. So PISIGuard runs entirely in your browser. It spots names, email addresses, phone numbers, credit card numbers, passwords, API keys, and more, replaces them with safe placeholders, then puts the real values back into the AI’s reply. From your point of view, it’s mostly invisible; from the AI’s point of view, the sensitive stuff was never there.
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