TruthLens AI

A Chrome extension that detects bias and misinformation in online articles using Google's Gemini AI.

Features

• Bias Detection — Identifies left, right, or neutral bias with explanations
• Emotional Language — Highlights emotionally charged language in articles
• Missing Context — Surfaces facts or context the article may have omitted
• Opposing Viewpoints — Presents alternative perspectives
• Trust Score — Rates article credibility on a 0–100 scale

Installation

1. Clone this repository:

   git clone https://github.com/Sujthr/TruthLens.git

2. Open Chrome and navigate to chrome://extensions/
3. Enable Developer mode (top-right toggle)
4. Click Load unpacked and select the TruthLens folder

Setup

1. Get a free Gemini API key from Google AI Studio
2. Click the TruthLens extension icon in your browser toolbar
3. Enter your API key in the input field and click Save

Your API key is stored locally in your browser's extension storage. It is never hardcoded or shared.

Usage

1. Navigate to any news article or blog post
2. Click the TruthLens extension icon
3. Click Analyze Article
4. View the AI-generated bias analysis in the popup

Tech Stack

• Chrome Extension (Manifest V3)
• Google Gemini 2.5 Flash-Lite for AI analysis
• Chrome Storage API for secure local key storage

Project Structure

TruthLens/
├── manifest.json    # Extension configuration
├── background.js    # Service worker — handles Gemini API calls
├── content.js       # Content script — extracts article text
├── popup.html       # Extension popup UI
├── popup.js         # Popup logic — key management & analysis trigger
├── styles.css       # Popup styling
└── README.md

License

MIT