From YouTube video to notes you can keep

The usual way to take notes from a video

You open a long video and a blank document, then keep pausing. Ten minutes in, you have half a page of fragments, you've lost the thread, and there's still an hour to go.

A week later you remember the speaker said something useful, but your notes don't say where. So you scrub through the video again. A YouTube note taker should save you that second trip.

What changes with Claras

You stop writing while you watch. Claras turns the YouTube video to notes first: a summary of the whole thing, titled chapters with times, and the full transcript to search. Then you decide what's worth keeping and put it in your own words, with a timestamp next to every point so you can find it again.

It suits anyone who learns from long videos: talks, tutorials, interviews, courses and podcasts filmed for YouTube.

A worked example: notes from a 2-hour debate

This uses the video from our home page demo, "AI Experts Debate: The AI Labs Are Lying To Everyone", 2 hours 24 minutes long. The outputs quoted are the demo's samples, so a real run will word things differently.

What Claras does

It gets the captions, so nothing comes out of your transcription hours. It reads the transcript in 20-minute stretches, each in full, so a video this long is read in eight parts. It writes chapters as it goes, with no stretch longer than about five minutes left without one, then writes the summary from all the parts together.

What you read first

The summary opens with a few sentences on what the video covers. In the demo: "Four experts debate whether AI could end humanity. They split on halting research now versus regulating the big labs, and on whether a superintelligence can be contained at all." Then come the key takeaways, and a section for each part of the debate.

Picking what to keep

The chapter list is your outline. The demo lists timestamped points like "How AI could cause extinction" at 4:05, "Can we control smarter AI?" at 15:01 and "How many jobs are at risk?" at 1:00:12. Say jobs is the part you care about. In the app, click the chapter for that part and the video plays from there. Watch those minutes at normal speed, then write your note under that heading.

Filling the gaps

Search the transcript for a word you half remember, and it shows every line that contains it. For a narrow question, ask Ask AI. In the demo, "Where do they talk about jobs?" gets "From 1:00:12. They spend about 15 minutes on how much job disruption AI could really cause."

Taking it with you

Copy the chapters as your headings, add the takeaways you agree with, and paste them into your notes app. You've gone from link to notes without typing out the video, and every point has a time you can return to.

Tips for better notes from YouTube

Set your instructions once

Custom instructions apply to every summary you run after setting them, not ones already written. Good ones are short and specific: "Use short bullets", "Define new terms", "Note any steps to try".

Use chapters as headings

Copy the chapters into your notes first, then write under the ones that matter. You end up with notes in the video's order, each section with its time.

Quote from the transcript, not the summary

The summary is the AI's wording. If you want the speaker's exact words, search the transcript and copy the line, without timestamps if you prefer.

Link to the exact moment

To cite a point, use the timestamp link generator to make a link that opens the video at that second.

Ask in the speaker's words

Ask AI picks the parts of the transcript that share the most words with your question. If it misses, search the transcript for the speaker's wording and ask again with it.

Make study material elsewhere

There's no flashcard feature. Send the transcript to Claude or ChatGPT with Send to AI and ask for flashcards or a quiz, then check them against the video.

Lectures and long series

For a long lecture or a course, see summarizing lectures, which also covers recordings you made yourself.

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