YouTube Video Summarizer icon

YouTube Video Summarizer

by NoteLM.ai ยท notelm.ai ยท Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Summarize YouTube videos with AI using your own Gemini API key

Users
2,000
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#22K
#19K among extensions
Version
1.2.0
updated 14 Jan 2026

Users

monthly, 9 months
01,0002,000Jan 2026Jun 2026Oct 2026
Latest, 16 Oct 2026: 2,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months
012Jan 2026Jun 2026Oct 2026
Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About YouTube Video Summarizer

๐Ÿ“น 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 quotesโ€”all powered by Google Gemini. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โœจ KEY FEATURES โ€ข 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. โ€ข CLICKABLE TIMESTAMPS Every timestamp in your summary is clickable! Jump to any moment in the video instantly. โ€ข AUTO-GENERATED CHAPTERS AI creates logical topic-based chapters for easy navigation through the video content. โ€ข 65+ OUTPUT LANGUAGES Generate summaries in your preferred language, regardless of the video's original language. โ€ข 20 UI LANGUAGES Interface fully translated: English, ไธญๆ–‡, ๆ—ฅๆœฌ่ชž, ํ•œ๊ตญ์–ด, Espaรฑol, Franรงais, Deutsch, Italiano, Portuguรชs, ะ ัƒััะบะธะน, ุงู„ุนุฑุจูŠุฉ, and more! โ€ข DYNAMIC MODEL SELECTION Choose from all available Gemini models. The extension automatically ranks and recommends the best model for you. โ€ข NOTABLE QUOTES Extracted quotes with precise time ranges for easy reference and citation. โ€ข CLICKABLE HASHTAGS AI-generated topic tags link directly to YouTube hashtag search. โ€ข BEAUTIFUL UI Clean, non-intrusive panel integrated directly into YouTube's sidebar. Supports dark mode and RTL languages automatically. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“„ SUMMARY OUTPUT FORMAT โ”Œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ฌโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ” โ”‚ ๐ŸŽฌ Overview โ”‚ 2-3 sentence executive summary โ”‚ โ”‚ โ”‚ with video type identification โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿ“‘ Chapters โ”‚ Clickable timestamps for major โ”‚ โ”‚ โ”‚ topic sections with descriptions โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿ“Œ Key โ”‚ Important insights with timestamps โ”‚ โ”‚ Points โ”‚ and relevant details โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿ“ Summary โ”‚ Comprehensive content breakdown โ”‚ โ”‚ โ”‚ with in-text timestamps โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿ’ฌ Quotes โ”‚ Significant quotes with time ranges โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿ’ก Takeawaysโ”‚ Actionable conclusions and insights โ”‚ โ”œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ผโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ค โ”‚ ๐Ÿท๏ธ Tags โ”‚ Clickable topic hashtags for search โ”‚ โ””โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”ดโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”˜ โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŽฏ 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! โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ”‘ 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! โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿค– SUPPORTED GEMINI MODELS The extension automatically fetches and ranks all available models: โ€ข GEMINI 3 SERIES: Latest and most capable (Pro, Flash) โ€ข GEMINI 2.5 SERIES: Fast and intelligent (Flash, Pro, Flash-Lite) โ€ข GEMINI 2.0 SERIES: Previous generation (Flash, Flash-Lite) โ€ข GEMINI 1.5 SERIES: Legacy support (Pro, Flash) Models are auto-sorted by capability. The best model is recommended by default. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“Š SMART CONTENT SCALING The extension automatically adjusts output based on video duration: โ€ข SHORT (< 5 min): 3-5 chapters, concise summary โ€ข MEDIUM (5-15 min): 4-7 chapters, balanced detail โ€ข LONG (15-30 min): 6-10 chapters, comprehensive โ€ข EXTENDED (30+ min): 8-12 chapters, detailed analysis โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŒ 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 โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŒ UI LANGUAGES (20) The extension interface is fully translated into: โ€ข EAST ASIAN: ็ฎ€ไฝ“ไธญๆ–‡, ็น้ซ”ไธญๆ–‡ (ๅฐ็ฃ), ็น้ซ”ไธญๆ–‡ (้ฆ™ๆธฏ), ๆ—ฅๆœฌ่ชž, ํ•œ๊ตญ์–ด โ€ข ROMANCE: Espaรฑol, Espaรฑol (Latinoamรฉrica), Espaรฑol (US), Franรงais, Franรงais (Canada), Italiano, Portuguรชs, Portuguรชs (Portugal) โ€ข GERMANIC: English, English (UK), Deutsch โ€ข SLAVIC: ะ ัƒััะบะธะน, ะฃะบั€ะฐั—ะฝััŒะบะฐ, Polski โ€ข RTL: ุงู„ุนุฑุจูŠุฉ (with full right-to-left layout support) โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ”’ PRIVACY-FIRST DESIGN โ€ข NO DATA COLLECTION - We don't collect any user data โ€ข LOCAL API KEY STORAGE - Your key stays on your device โ€ข DIRECT API CALLS - Transcripts go directly to Google's API โ€ข NO ANALYTICS - Zero tracking, zero telemetry โ€ข NO ACCOUNT REQUIRED - Use immediately after setup โ€ข NO INTERMEDIARY SERVERS - Direct connection to Google โ€ข OPEN SOURCE - Tโ€ฆ

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months+1,000+100.0%+10.00

Chrome Web Store search rankings

Where YouTube Video Summarizer appears when people search the store, with the 30 day change
Search phrasePosition30 days
ai youtube summarizer#62โˆ’5
youtube summarizer#71โˆ’19

Version history

2 versions recorded
1.2.014 Jan 2026
1.0.07 Jan 2026

Details

Category
Tools
First seen
7 Jan 2026
Size
169 KB
Languages
de, en, en-GB, es, es-419, fr, it, pl
Pricing
Free
Privacy policy
notelm.ai
Support
notelm.ai
Extension ID
behmahfjdnhfodnailemeaapflmilpic

Permissions and risk

Moderate riskimpact 3, likelihood 1
Permissions
storagewebRequest
Site access
https://*.youtube.com/*https://generativelanguage.googleapis.com/*

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