What is Valerie?
Valerie is a free browser extension for Chrome and Edge that detects and blocks AI chatbots including ChatGPT, Claude, Google Gemini, Microsoft Copilot, and more. Using advanced behavioral detection technology, Valerie monitors network activity, streaming text patterns, and WebSocket connections to identify AI tools on any website. When AI is detected, you can choose to allow or block it with one click. Your preferences are saved and remembered for future visits.
Features
- Block entire AI websites (ChatGPT, Claude, Gemini, and more)
- NEW: True behavioral monitoring - detects AI by network activity, streaming text, and WebSockets
- Detect AI chatbots and tools embedded on websites
- Shows a prompt when AI is detected
- Allow or block with one click
- Remembers your choices for each website
- View all allowed and blocked sites in the popup
- NEW: Toggle behavior detection on/off in settings
- Remove sites from your lists anytime
What Can Valerie Block?
AI Websites (Full Site Blocking)
Valerie can detect and block these AI websites when you visit them:
True Behavioral Detection (NEW!)
Valerie monitors actual page behavior in real-time:
- Network Activity - Intercepts API calls to AI services (OpenAI, Anthropic, Google AI)
- Streaming Text - Detects character-by-character text appearing in real-time (10-200ms intervals)
- WebSocket Connections - Monitors live streaming connections typical of AI chats
- Timing Analysis - Analyzes response patterns to identify AI-generated content
Behavioral detection monitors what pages DO, not what they have - catching any AI tool, even brand-new ones!
Embedded AI Chatbots & Tools
Valerie can also detect AI widgets embedded on other websites:
Installation
Alternative: Manual Installation
If you prefer to install manually or want to use Edge, follow these steps:
- Download the ZIP file using the button below
- Extract the ZIP file to a folder on your computer
- Open Chrome or Edge and go to
chrome://extensions/(oredge://extensions/) - Enable "Developer mode" using the toggle in the top-right corner
- Click "Load unpacked" button
- Select the extracted folder containing the extension files
- Valerie is now installed! You'll see the icon in your browser toolbar
Pin Valerie to Your Toolbar
After installation, you may need to pin the Valerie icon so it's always visible in your browser toolbar:
- Click the Extensions icon (puzzle piece) in your browser's top-right corner
- Find "Valerie - AI Detector" in the list
- Click the pin icon (📌) next to Valerie
- The Valerie icon (🛡️) will now appear in your toolbar for easy access
How to Use Valerie
- Browse normally: Visit any website as you normally would
- Detection prompt: If AI tools are detected, you'll see a popup asking what to do
- Make your choice: Click "Allow" to keep the AI tools, or "Block" to remove them
- Automatic handling: On future visits, Valerie will remember your choice
- Manage lists: Click the Valerie icon to view and manage allowed/blocked sites
Extension Files
The extension consists of the following files:
manifest.json- Extension configurationcontent.js- AI detection and blocking logicbackground.js- Background service workerpopup.html- Popup interfacepopup.css- Popup stylingpopup.js- Popup functionalityicon16.png, icon48.png, icon128.png- Extension icons
Download Extension
Download all extension files in one ZIP file
The ZIP file contains all 9 required files. Extract the ZIP to a folder, then follow the installation instructions above.
Privacy & Security
Valerie runs entirely in your browser and does not collect or send any data to external servers. All your preferences (allowed/blocked sites) are stored locally in your browser using Chrome's storage API.
Troubleshooting
Extension not detecting AI tools?
- Try refreshing the webpage after installing the extension
- Some AI tools may load after the initial page load - give it a few seconds
- The extension looks for common AI service signatures - very custom implementations may not be detected
Prompt not showing?
- Check if the site is already in your allowed or blocked list
- Make sure the extension is enabled in chrome://extensions/
- Check browser console for any errors
Frequently Asked Questions
Does Valerie work on all browsers?
Valerie works on Google Chrome and Microsoft Edge browsers. It uses Manifest V3, the latest extension standard.
Is Valerie free to use?
Yes! Valerie is completely free and open source. There are no premium features or subscriptions.
Does Valerie collect my data?
No. Valerie runs entirely in your browser and does not collect or send any data to external servers. Your privacy is protected.
Can I use Valerie on Firefox?
Currently, Valerie is designed for Chrome and Edge. Firefox support may be added in future versions.
What AI tools can Valerie detect?
Valerie detects ChatGPT, Claude, Google Gemini, Microsoft Copilot, Perplexity AI, and many more AI chatbots through behavioral monitoring and domain detection.