PhishSignal

About

Shield your inbox with PhishSignal, the privacy-first browser extension that quietly analyzes emails for phishing, spoofed senders, deceptive links, and emotional manipulation, all entirely local to your device.

🐾 Why PhishSignal?

Unlike traditional phishing tools relying on remote AI or lists, PhishSignal uses simple yet powerful local, rule-based heuristics that flag suspicious emails based on sender inconsistencies, brand impersonation, risky content, and emotional manipulation tactics (e.g., urgent or fear-inducing language). This means:

- No data leaves your browser
- Low resource use, fast, and no internet connection needed for analysis
- A subtle, non-intrusive experience that gently nudges you to pause before reacting to risky emails


🐾 Unique Visual Alerts

When risk is detected, you’ll see animated panther pawprints appearing subtly near your suspicious emails, encouraging a moment of caution. Follow these pawprints to click on our extension and open the X-Ray Panel, which breaks down exactly why the email was flagged -  with both technical insights and easy-to-understand explanations.


🐾 Instant Phishing Detection

PhishSignal analyzes your Gmail emails in real-time, spotting suspicious senders, risky links, dangerous attachment extensions, and emotional manipulation tactics. When something's fishy, adorable panther paws appear on your screen to alert you.


🐾 X-Ray Analysis

Click the Panther button (bottom-right corner) to reveal why an email was flagged. Our detailed X-Ray panel explains both the technical details and user-friendly summaries, helping you understand exactly what made the email suspicious.


🐾 Privacy-First Protection

Your emails never leave your browser. PhishSignal uses local rule-based analysis - no cloud processing, no data collection, no machine learning models. Everything happens on your device for complete privacy.


🐾  Key Features

- Real-time email analysis for Gmail
- Visual panther paw alerts for suspicious emails
- Detailed X-Ray breakdowns with explanations
- Pawfeed dashboard to review all flagged emails
- Sender spoofing and domain impersonation detection
- Emotional manipulation and urgency language detection
- Suspicious link and attachment analysis
- Works entirely offline - no data sent to servers


🐾  Perfect For

- Young professionals and students looking to stay safe from phishing and email impersonation
- Anyone wary of emotional manipulation tactics in emails
- Privacy-conscious users wanting a local-only security tool without cloud risk
- Institutions and educational organizations seeking easy-to-deploy phishing mitigation


🐾  Technical Details

- Compatible with Chrome, Edge, Brave, and Opera
- Manifest V3 compliant for enhanced security
- Local rule-based heuristics (no AI or cloud dependency)
- Lightweight and fast - won't slow down your browser
- Note: This is a beta release. Some features may evolve based on feedback and testing.


🐾 Get Started In Seconds Now!

Install PhishSignal, complete the quick onboarding, and turn your inbox into a smarter, safer place- no subscriptions, no cloud, just local protection that respects your privacy.

Build better email security habits with PhishSignal.


🐾  Disclaimer: 
PhishSignal highlights potential risks in emails using simple, transparent signals. It’s a guide - not a guarantee. Use your judgment before clicking or replying.