A Chrome extension that uses AI to detect and blur inappropriate images on web pages. Automatically blurs images with 50% or higher probability of containing Porn, Hentai, or Sexy content

• AI-powered content detection: Uses the NSFWJS TensorFlow.js model to analyze images
• Smart blurring: Automatically blurs images with 50% or higher probability of containing Porn, Hentai, or Sexy content
• User control: Adjustable sensitivity threshold and category selection
• Privacy-focused: All image analysis happens locally in your browser
• Easy to use: Simple toggle to enable/disable protection

1. Download the extension files or clone this repository
2. Open Chrome and navigate to chrome://extensions/
3. Enable Developer mode (toggle in the top right)
4. Click "Load unpacked" and select the extension folder
5. The extension icon will appear in your Chrome toolbar

1. Click the extension icon in your Chrome toolbar to open settings
2. Enable protection using the toggle switch
3. Adjust sensitivity (default: 50% threshold)
4. Select categories to blur (Porn, Hentai, Sexy)
5. Save settings and browse the web safely

• Local Processing: The extension runs entirely in the browser using a local version of the MobileNet V2 model via NSFWJS. No images are sent to external servers.
• Image Detection:
  • Scans the page for <img> elements and elements with background images.
  • Uses MutationObserver to detect new images added to the page dynamically.
  • Uses IntersectionObserver to only process images when they scroll into view, optimizing performance.
• Classification:
  • Images are converted to tensors and analyzed by the TensorFlow.js model.
  • The model outputs probability scores for 5 categories: Neutral, Drawing, Porn, Hentai, and Sexy.
• Censoring Action:
  • If the probability for Porn, Hentai, or Sexy exceeds the user-defined threshold (default 50%), a blur filter is applied.
  • The blur is implemented using CSS classes (gaze-guard-blur).
  • Users can click blurred images to temporarily reveal them.

• Enable protection: Toggle the extension on/off
• Sensitivity threshold: Adjust from 10% to 90% (default: 50%)
• Categories: Choose which content types to blur (Porn, Hentai, Sexy)

This extension respects your privacy:

• No data is collected or sent to external servers
• Image analysis happens entirely in your browser
• No browsing history is stored
• Settings are saved locally in Chrome storage

gaze-guard/
├── manifest.json              # Extension configuration and permissions
├── background.js              # Handles settings storage and CORS-bypassing for image fetching
├── content.js                 # Core logic: DOM scanning, image classification, and censoring
├── styles.css                 # CSS for the blur effect
├── popup.html/js/css          # Settings UI
├── libs/                      # Local dependencies
│   ├── nsfwjs.min.js          # NSFWJS library
│   └── tf.min.js              # TensorFlow.js library
└── models/                    # Pre-trained MobileNet V2 model files
    └── mobilenet_v2/          # Model weights and topology

We use the MobileNet V2 model provided by NSFWJS. This model is:

• Lightweight: Optimized for running in the browser with low memory usage.
• Fast: Provides near real-time classification.
• Accuracy: Balanced trade-off between speed and accuracy for client-side filtering.

This project uses the NSFWJS model which is open source. The extension code is provided as-is for educational and personal use.