Show HN: Trinetra – AI Browser Extension That Detects Phishing in Real Time

1 point

a year ago

Hi HN! I'm Pradumon Sahani, a Class 12 student from India. I recently built and open-sourced *Trinetra* — a Chrome extension that scans websites in real time using *Google’s Gemini 1.5 Flash AI* to detect phishing, malware, and deceptive scripts or downloads.

Key Features: - AI-powered page scanning with Gemini - DOM, script, network, and download monitoring - Popup verdict: SAFE / SUSPICIOUS / DANGEROUS - User-managed API key (no backend or tracking) - Built with Manifest V3 + prompt engineering - Human-readable explanation for threats

I wanted to explore how browser security could evolve beyond static blacklists by integrating *real-time AI analysis* natively into browsing.

GitHub: https://github.com/pradumon14/trinetra Whitepaper included in the repo Feedback and contributions welcome!

Would love to hear your thoughts, feedback, or improvements.