Free YouTube Video Summarizer
AI-Powered YouTube Summarizer with Timestamps — 100% Free
NoteLM is a 100% free YouTube video summarizer that generates AI-powered summaries with clickable timestamps and chapters. It works with any video that has captions (95%+ of YouTube videos have auto-captions), outputs in 50+ languages, and handles videos of any length with Gemini's 1M token context window. No signup, no credit card — just paste a video URL and get an instant summary.
Key Takeaways
- Free YouTube Summarizer
Generate AI summaries for any YouTube video — 100% free with Gemini's free API tier.
- YouTube Transcript Generator
Extract full transcripts with timestamps. Export in SRT, VTT, TXT, or markdown formats.
- Clickable Timestamps
Jump to any moment in the video directly from the summary. Perfect for navigation.
- 100% free YouTube video summarizer (1,500 summaries/day)
- AI-powered summaries with clickable timestamps
- YouTube transcript generator with SRT/VTT export
Technical Specifications
| Video Length Support | Unlimited (1 minute to 10+ hours) |
| Caption Requirements | Auto-captions (95%+ videos) or manual |
| Output Languages | 50+ (including cross-language) |
| Timestamp Accuracy | Chapter-level (clickable navigation) |
| Context Window | 1M tokens (handles 100+ page transcripts) |
| Processing Speed | 10-60 seconds (depending on length) |
| Cost | Free (uses free Gemini API tier) |
How to Get Started
Set up Free YouTube Video Summarizer in minutes
Find a Video
Go to any YouTube video with captions (look for CC icon — 95%+ videos have it).
Click Summarize
Click the NoteLM button on the video page. AI processing takes 10-60 seconds.
Read Summary
View AI-generated summary with clickable timestamps and chapter headings.
Navigate or Export
Click timestamps to jump to moments. Copy to Notion/Obsidian or download transcript.
Use Cases
How people use Free YouTube Video Summarizer
Why Use This Integration
100% Free
Uses free Gemini API tier. 1,500 summaries per day, no credit card ever.
Any Video Length
From 1-minute clips to 10-hour streams. 1M token context handles any transcript.
Clickable Navigation
Jump to exact moments via timestamps. Perfect for studying and reviewing.
Cross-Language
Watch videos in any language, get summaries in your preferred language.
Limitations to Know
- ⚠Requires video to have captions (CC icon visible in player)
- ⚠Private videos cannot be accessed (public/unlisted only)
- ⚠Auto-generated captions may contain errors (manual captions produce better summaries)
- ⚠Very long videos (3+ hours) may take 1-2 minutes to process
- ⚠Free Gemini API tier has rate limits (1,500 requests/day)
Frequently Asked Questions
Is this YouTube summarizer really free?
Yes, 100% free. NoteLM uses Google's free Gemini API tier which provides 1,500 requests per day — more than enough for any individual user. No credit card, no hidden fees.
How do I get a YouTube transcript?
Open any YouTube video with NoteLM extension installed. Click the transcript button to view and download the full transcript in SRT, VTT, TXT, or markdown format.
What if there are no captions?
NoteLM requires captions to generate summaries. The good news: 95%+ of YouTube videos have auto-generated captions (look for CC icon). Only music videos and some private content lack them.
Can I summarize videos in other languages?
Yes! NoteLM supports cross-language summarization. Watch a Japanese lecture and get an English summary. Input: any language with captions. Output: 50+ languages of your choice.
How long can videos be?
Unlimited. NoteLM uses Gemini's 1M token context window, which handles transcripts of 100+ pages. A 10-hour video is no problem. Longer videos take 1-2 minutes to process.
Are the timestamps clickable?
Yes! Click any timestamp in the summary to jump directly to that moment in the video. Perfect for reviewing specific sections or citing sources.
How accurate are the summaries?
Gemini 2.5 produces highly accurate summaries. Quality depends on caption accuracy — manual captions produce better results than auto-generated ones. Always verify critical information by clicking timestamps.
Written By
The NoteLM team specializes in AI-powered video summarization and learning tools. We are passionate about making video content more accessible and efficient for learners worldwide.
Sources & References
Ready to Try Free YouTube Video Summarizer?
Get started with NoteLM and Free YouTube Video Summarizer today — it's free.