Show HN: A lightweight DLP browser extension to prevent data leaks in LLM tools

[__alberto]

Hi HN, I’m a student working at a small company. I noticed some of my colleagues were accidentally pasting sensitive data and internal docs into ChatGPT, Gemini, etc.

Enterprise DLPs were a bit too expensive and complex for us, so I built this browser extension. It scans prompts and docs in real-time, alerts the user, and can anonymize data before it’s sent.

I’d love to hear your thoughts on the technical approach (browser-native vs network level) and if you find this useful.