The best AI YouTube summarizers for studying
Notedly is our top pick for turning YouTube lectures into study notes. Gemini Notebook is best for studying across many sources, and Eightify and Glasp suit quick skims inside YouTube.
The list
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1. Notedly Our product
Best for Turning YouTube lectures into study notes (standard, Cornell or outline), alongside your readings
1 free summary with no account, then 10,000 words/month free. Premium $9.99/month or $49.99/year
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2. Gemini Notebook (formerly NotebookLM)
Best for Studying across many sources at once in one notebook
Free. Up to 50 sources per notebook on the free plan; YouTube videos need captions[1]
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3. NoteGPT
Best for Batch-summarizing many videos and transcripts
Free online summarizer; Pro $9.99/month, Unlimited $29/month[2][3]
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4. Glasp YouTube Summary
Best for A summary and transcript beside the video in your browser
Free extension: 3 on-page summaries every 7 days. Paid from $15/month or $150/year[4]
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5. Eightify
Best for Quick timestamped key points inside YouTube
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6. Mindgrasp
Best for Flashcards and quizzes from videos plus other uploads
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7. StudyFetch
Best for An AI tutor and flashcards built from your course uploads
Free to start; Premium $19.99/month or $96/year (US App Store)[9][10]
Why Notedly is our top pick
- Notes, not just a summary. Standard, Cornell or outline notes, in the format your class uses.
- Long lectures. Long videos with captions work, and short videos without captions are transcribed by AI.
- Free to try. One summary with no account, then 10,000 words a month free. Premium is $9.99 a month or $49.99 a year.
How we compiled this list
We checked each tool's own site, help docs or App Store listing (sources below) for what a student needs from a lecture video: structured notes, long videos and videos without captions, a real way to try it free, and the cost of a semester. Notedly is our product.
Frequently asked questions
What is the best AI YouTube summarizer for students?
For turning lectures into notes you can study from, we recommend Notedly: paste a YouTube link and get standard, Cornell or outline notes. Long videos with captions work, and short videos without captions are transcribed by AI. Your first summary is free with no account.
Is there a free YouTube summarizer with no sign-up?
Yes. Notedly's YouTube summarizer gives you your first summary without an account. After that, a free account includes 10,000 words a month.
Can AI summarize a YouTube video that has no captions?
Some tools can't: Gemini Notebook only imports public YouTube videos with captions. Notedly transcribes short videos without captions with AI, then writes your notes.
Can AI summarize a 2-hour lecture?
Yes, if the video has captions. Notedly has no length cap for captioned videos. Long lectures use more of your monthly words, so a semester of them fits best on Premium (500,000 words a month).