YouTube Video Summarizer

Summarize YouTube videos with AI using your own Gemini API key

📹 AI-POWERED YOUTUBE VIDEO SUMMARIZER Transform any YouTube video into structured, actionable notes in seconds. Get AI-generated summaries with clickable timestamps, auto-generated chapters, key points, and notable quotes—all powered by Google Gemini. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ KEY FEATURES • AI-POWERED SUMMARIES Generate comprehensive video summaries using Google's latest Gemini AI models. Choose from 10+ models including Gemini 3, 2.5, and 2.0 series. • CLICKABLE TIMESTAMPS Every timestamp in your summary is clickable! Jump to any moment in the video instantly. • AUTO-GENERATED CHAPTERS AI creates logical topic-based chapters for easy navigation through the video content. • 65+ OUTPUT LANGUAGES Generate summaries in your preferred language, regardless of the video's original language. • 20 UI LANGUAGES Interface fully translated: English, 中文, 日本語, 한국어, Español, Français, Deutsch, Italiano, Português, Русский, العربية, and more! • DYNAMIC MODEL SELECTION Choose from all available Gemini models. The extension automatically ranks and recommends the best model for you. • NOTABLE QUOTES Extracted quotes with precise time ranges for easy reference and citation. • CLICKABLE HASHTAGS AI-generated topic tags link directly to YouTube hashtag search. • BEAUTIFUL UI Clean, non-intrusive panel integrated directly into YouTube's sidebar. Supports dark mode and RTL languages automatically. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📄 SUMMARY OUTPUT FORMAT ┌─────────────┬───────────────────────────────────────┐ │ 🎬 Overview │ 2-3 sentence executive summary │ │ │ with video type identification │ ├─────────────┼───────────────────────────────────────┤ │ 📑 Chapters │ Clickable timestamps for major │ │ │ topic sections with descriptions │ ├─────────────┼───────────────────────────────────────┤ │ 📌 Key │ Important insights with timestamps │ │ Points │ and relevant details │ ├─────────────┼───────────────────────────────────────┤ │ 📝 Summary │ Comprehensive content breakdown │ │ │ with in-text timestamps │ ├─────────────┼───────────────────────────────────────┤ │ 💬 Quotes │ Significant quotes with time ranges │ ├─────────────┼───────────────────────────────────────┤ │ 💡 Takeaways│ Actionable conclusions and insights │ ├─────────────┼───────────────────────────────────────┤ │ 🏷️ Tags │ Clickable topic hashtags for search │ └─────────────┴───────────────────────────────────────┘ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 HOW TO USE 1. Get your FREE Gemini API key from Google AI Studio 2. Click "Verify" to validate your key and load available models 3. Select your preferred AI model (best is recommended) 4. Navigate to any YouTube video with subtitles 5. Play the video briefly (loads subtitle data) 6. Select your preferred output language 7. Click "Summarize Video" in the NoteLM panel 8. Click any timestamp to jump to that moment! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔑 SETUP (30 SECONDS) 1. Visit aistudio.google.com/app/apikey 2. Sign in with your Google account 3. Click "Create API key" - it's FREE! 4. Paste the key in the extension's settings 5. Click "Verify" to validate and see available models 6. Select your preferred model and click "Save" FREE TIER LIMITS: 15 requests/minute, 1,500 requests/day That's plenty for daily video summarization! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 SUPPORTED GEMINI MODELS The extension automatically fetches and ranks all available models: • GEMINI 3 SERIES: Latest and most capable (Pro, Flash) • GEMINI 2.5 SERIES: Fast and intelligent (Flash, Pro, Flash-Lite) • GEMINI 2.0 SERIES: Previous generation (Flash, Flash-Lite) • GEMINI 1.5 SERIES: Legacy support (Pro, Flash) Models are auto-sorted by capability. The best model is recommended by default. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📊 SMART CONTENT SCALING The extension automatically adjusts output based on video duration: • SHORT (< 5 min): 3-5 chapters, concise summary • MEDIUM (5-15 min): 4-7 chapters, balanced detail • LONG (15-30 min): 6-10 chapters, comprehensive • EXTENDED (30+ min): 8-12 chapters, detailed analysis ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌍 OUTPUT LANGUAGES (65+) Select from any of these languages for your summary output: ASIAN: Chinese (Simplified/Traditional/Hong Kong), Japanese, Korean, Vietnamese, Thai, Hindi, Bengali, Indonesian, Malay, Filipino, Tamil, Telugu, Kannada, Malayalam, Marathi, Gujarati, Punjabi, Urdu, Nepali, Sinhala, Burmese, Khmer, Lao EUROPEAN: English (US/UK/India), Spanish (Spain/LatAm/US), French (France/Canada), German, Portuguese (Brazil/Portugal), Italian, Russian, Dutch, Polish, Swedish, Norwegian, Danish, Finnish, Greek, Czech, Slovak, Romanian, Hungarian, Bulgarian, Croatian, Serbian, Slovenian, Ukrainian, Belarusian, Lithuanian, Latvian, Estonian, Icelandic, Albanian, Macedonian, Bosnian MIDDLE EASTERN: Arabic, Turkish, Hebrew, Persian AFRICAN: Afrikaans, Swahili, Amharic, Zulu CENTRAL ASIAN: Kazakh, Uzbek, Kyrgyz, Azerbaijani, Georgian, Armenian, Mongolian ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌐 UI LANGUAGES (20) The extension interface is fully translated into: • EAST ASIAN: 简体中文, 繁體中文 (台灣), 繁體中文 (香港), 日本語, 한국어 • ROMANCE: Español, Español (Latinoamérica), Español (US), Français, Français (Canada), Italiano, Português, Português (Portugal) • GERMANIC: English, English (UK), Deutsch • SLAVIC: Русский, Українська, Polski • RTL: العربية (with full right-to-left layout support) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 PRIVACY-FIRST DESIGN • NO DATA COLLECTION - We don't collect any user data • LOCAL API KEY STORAGE - Your key stays on your device • DIRECT API CALLS - Transcripts go directly to Google's API • NO ANALYTICS - Zero tracking, zero telemetry • NO ACCOUNT REQUIRED - Use immediately after setup • NO INTERMEDIARY SERVERS - Direct connection to Google • OPEN SOURCE - Transparent codebase you can verify ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ WORKS WITH • Videos with manual subtitles/captions • YouTube auto-generated captions • Any language subtitles available on the video • Regular videos and live stream archives • Long-form content (lectures, podcasts, tutorials) • All Chromium-based browsers (Chrome, Edge, Brave, Opera, Vivaldi, Arc) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ WHY CHOOSE THIS EXTENSION? Unlike other video summarizers, this extension offers: ✓ FREE with your own API key (generous free tier) ✓ 10+ Gemini AI models to choose from ✓ Dynamic model selection with auto-ranking ✓ API key verification before saving ✓ Clickable timestamps for video navigation ✓ Clickable hashtags for topic search ✓ 65+ output languages ✓ 20 UI languages including RTL support ✓ No subscriptions, no credits system ✓ Privacy-respecting (your data stays yours) ✓ Beautiful UI integrated into YouTube ✓ Dark mode support ✓ 4-stage loading progress indicator ✓ Detailed error messages with fix instructions ✓ No annoying pop-ups or ads ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📱 PERFECT FOR • Students summarizing lecture videos • Researchers analyzing video content • Content creators extracting key points • Language learners studying in different languages • Professionals reviewing long webinars • International users with native UI language support • Anyone who prefers reading to watching • Note-takers who want structured information ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💡 PRO TIPS • Click any timestamp to jump directly to that moment • Click hashtags to search related content on YouTube • Use the Copy button to save summaries to your notes • Try different output languages for translation • Switch models for different quality/speed tradeoffs • Regenerate for alternative perspectives • Longer videos get more detailed summaries automatically • Use Gemini 2.5 Pro for very long or complex videos ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🆘 TROUBLESHOOTING If summarization doesn't work: 1. Make sure the video has subtitles (look for CC button) 2. Play the video for 3-5 seconds first 3. Click "Verify" in settings to check your API key 4. Try refreshing the page and playing again 5. Switch to a different Gemini model if errors persist Detailed error messages will guide you through any issues! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🆕 WHAT'S NEW IN v1.2 • 20 UI languages with full localization • RTL support for Arabic, Hebrew, Persian, Urdu • All error messages now localized • Localized language names in picker v1.1 Features: • Dynamic model selection (10+ Gemini models) • API key verification with model loading • 65+ output languages with search • Clickable hashtag links • 4-stage loading progress • Enhanced error handling ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Made with ❤️ by NoteLM.ai Visit https://notelm.ai for more productivity tools