🤖 Get instant AI summaries of YouTube descriptions automatically!
A Chrome extension that uses Google's Gemini AI to summarize long YouTube video descriptions and displays them prominently in the top-right corner of the page.
- 🤖 Automatic AI Summaries: Instantly get concise summaries when opening YouTube videos
- 📍 Top-Right Display: Prominent, non-intrusive placement for maximum visibility
- 🎯 Smart Detection: Only summarizes videos with substantial descriptions (100+ characters)
- ⚡ Zero-Click Experience: No buttons to press - works automatically
- 🎨 Beautiful UI: Smooth animations and responsive design that adapts to YouTube themes
- 🔒 Privacy-Focused: Your API keys stay local, zero data tracking
- 🌙 Dark Mode Support: Seamlessly matches YouTube's light/dark themes
- Download or clone this repository
- Open Chrome and navigate to
chrome://extensions/ - Enable "Developer mode" (toggle in top right)
- Click "Load unpacked" and select this folder
- Get a Gemini API key (see setup below)
- Configure the extension via the options page
Coming soon...
- Visit Google AI Studio
- Sign in with your Google account
- Click "Create API Key"
- Copy the generated API key
- Right-click the extension icon → "Options"
- Paste your API key in the configuration field
- Click "Test API Key" to verify it works
- Click "Save API Key" to save your settings
- Visit any YouTube video with a description
- Look for the "AI Summary" button near the description
- Click the button to generate a summary
- Enjoy concise, helpful summaries!
- Detection: The extension detects when you're on a YouTube video page
- Button Injection: Adds an "AI Summary" button near the video description
- Content Extraction: Extracts and cleans the video description text
- AI Processing: Sends the description to Gemini AI for summarization
- Display: Shows the summary in a clean, readable format
- Busy viewers who want quick video overviews
- Researchers scanning multiple videos efficiently
- Content creators analyzing competitor descriptions
- Anyone dealing with overly long YouTube descriptions
- ✅ Local Storage: API key stored securely in your browser
- ✅ No Tracking: Zero analytics or personal data collection
- ✅ Direct API: Descriptions sent directly to Google (not our servers)
- ✅ Open Source: Full code transparency
- Short descriptions (under ~200 characters) are shown as-is
- Long descriptions get summarized into 2-3 key sentences
- Click "Hide Summary" to collapse the summary box
- Refresh the page if the button doesn't appear initially
- Make sure you're on a YouTube video page (not homepage/search)
- Try refreshing the page
- Check that the extension is enabled
- Verify you copied the entire key correctly
- Ensure your API key has Gemini access enabled
- Check you haven't exceeded usage limits
- Very short descriptions can't be meaningfully summarized
- Technical/non-English content may not summarize well
- Try the description on different types of videos
Built with:
- Manifest v3 for modern Chrome compatibility
- Vanilla JavaScript for lightweight performance
- Google Gemini AI for intelligent summarization
- Responsive CSS for cross-device compatibility
- Clone the repository
- Make your changes
- Reload the extension in
chrome://extensions/ - Test on various YouTube videos
- Support for multiple AI providers
- Customizable summary length
- Keyboard shortcuts
- Summary caching
- Dark/light theme preferences
- Multi-language support
Contributions are welcome! Please feel free to:
- Report bugs via GitHub issues
- Suggest new features
- Submit pull requests
- Help with translations
MIT License - feel free to modify and distribute!
If you find this extension helpful:
- ⭐ Star the repository
- 📢 Share with friends
- 🐛 Report bugs to help improve it
- 💡 Suggest new features
Made with ❤️ for YouTube viewers everywhere