Assistive Simplify Extension

A Chrome browser extension that makes web pages more accessible and easier to understand by providing AI-powered content simplification, TL;DR summaries, and intelligent action highlighting.

🌟 Features

• TL;DR Summaries: Get concise 3-point summaries of any web page
• Clean Content View: Removes ads, navigation clutter, and simplifies complex sentences
• Action Highlighting: Automatically identifies and highlights important interactive elements (buttons, links)
• Audio Playback: Listen to simplified content with text-to-speech
• Theme Control: Switch between light and dark modes for comfortable reading
• Floating Action Button (FAB): Quick access to simplification features from any page

🛠️ Tech Stack

Frontend

• Chrome Extension (Manifest V3)
• Vanilla JavaScript
• Content Scripts for DOM manipulation

Backend

• FastAPI (Python)
• Google Gemini AI (gemini-2.5-flash)
• Deployed on Vercel

📋 Prerequisites

• Python 3.8+ (for backend development)
• Node.js (optional, for development)
• Google Gemini API Key
• Chrome browser (version 88+)

🚀 Installation

1. Chrome Extension Setup

1. Open Chrome Extensions page

   • Navigate to chrome://extensions/
   • Enable "Developer mode" (toggle in top right)

2. Load the extension

   • Download and extract this GitHub repo
   • Click "Load unpacked"
   • Select the frontend folder from this project

3. Verify installation

   • You should see "Assistive Simplify Extension" in your extensions list
   • The extension icon will appear in your Chrome toolbar

💡 Usage

Activating the Extension

1. Navigate to any webpage you want to simplify

2. Use the floating action button (FAB) that appears on the bottom right of the page

Features

TL;DR Summary

• Click "Clarify Page" to get a 3-point summary of the page content
• The summary appears in an overlay panel

Clean Content View

• View a simplified version of the page with ads and clutter removed
• Complex sentences are rewritten for easier comprehension

Action Highlighting

• Interactive elements (buttons, links) are automatically detected
• AI filters out noise (ads, tracking, footer links)
• Important actions are highlighted with visual indicators

Audio Playback

• Listen to the simplified content using text-to-speech
• Useful for accessibility and multitasking

Theme Control

• Toggle between light and dark modes
• Preference is saved for future sessions

🏗️ Project Structure

SimplifyExt/
├── api/
│   └── index.py              # FastAPI backend with Gemini AI integration
├── frontend/
│   ├── manifest.json         # Chrome extension configuration
│   ├── background.js         # Service worker
│   ├── popup/
│   │   ├── popup.html        # Extension popup UI
│   │   ├── popup.css
│   │   └── popup.js
│   └── scripts/
│       ├── content.js        # Main content script orchestrator
│       └── modules/
│           ├── action-finder.js    # Scans DOM for interactive elements
│           ├── actions-layer.js    # Highlights detected actions
│           ├── audio-player.js     # Text-to-speech functionality
│           ├── config.js           # Configuration constants
│           ├── content-section.js  # Clean content display
│           ├── fab.js              # Floating action button
│           ├── mock-data.js        # Development mock data
│           ├── overlay-panel.js    # Overlay UI components
│           ├── overlay.js          # Main overlay controller
│           ├── theme-control.js    # Dark/light theme management
│           └── tldr-section.js     # TL;DR summary display
├── requirements.txt          # Python dependencies
├── vercel.json              # Vercel deployment configuration
└── README.md

Backend Setup for Development

1. Clone the repository

   git clone <repository-url>
   cd SimplifyExt

2. Install Python dependencies

   pip install -r requirements.txt

3. Set up environment variables

   Create a .env file in the root directory:

   GEMINI_API_KEY=your_gemini_api_key_here
   

4. Run the backend locally (for development)

   uvicorn api.index:app --reload

   The API will be available at http://localhost:8000

🐛 Troubleshooting

Extension not loading

• Ensure you selected the frontend folder (not the root project folder)
• Check Chrome console for errors (chrome://extensions/ → Details → Errors)

API errors

• Verify your GEMINI_API_KEY is set correctly
• Check that the backend URL in frontend code matches your deployment
• Ensure you're not exceeding Gemini API rate limits

Content not simplifying

• Check the browser console (F12) for errors
• Verify the page has readable text content
• Some pages with heavy JavaScript may not extract content properly