YouTube Video Summarizer for Students
Updated · By the Revizly team
Paste a YouTube link and Revizly turns the video into a summary you can actually study from: an organized study guide with the key terms and must-know points, plus flashcards and a practice quiz built from the same video. It works with any video that has captions, up to four hours long.
Real example
The Humanistic Approach in Psychology
What went in: An A-level psychology lecture on YouTube, imported by a student with a link.
okay this lesson is on the humanistic approach and it's the final approach in the year one psychologist X book now important bit of information for you is that if you intend to not do the two year a level course…
The opening of the video’s auto-generated captions, then part of the study guide and the first flashcards Revizly made from them. Formatting is simplified for this page.
The study guide
1. Origins and Core Principles
Must-know: The humanistic approach views people as self-determining active agents with free will, whereas deterministic approaches explain behaviour as shaped by forces outside the person’s control.
Must-know: Humanistic psychologists prioritise the subjective experience of the individual rather than seeking general laws of behaviour.
Memory hook: Humanistic freedom contrasts with behaviourist control and psychodynamic conflict.
- The humanistic approach emerged in the 1950s and 1960s in response to dissatisfaction with behaviourism and psychodynamic psychology.
2. Maslow’s Hierarchy of Needs
Must-know: The first four levels of Maslow’s hierarchy are deficiency needs, whereas self-actualisation is a being need.
Memory hook: Physiological → safety → belonging → esteem → self-actualisation.
- Maslow’s hierarchy of needs: human needs are arranged from basic needs at the bottom to higher-order needs at the top.
- Self-actualisation: the fulfilment of a person’s potential through personal growth, development, change and becoming fulfilled.
3. Self-Concept and Congruence
Memory hook: The self-concept is how I am; the ideal self is how I want to be.
- Self-concept (Rogers): the way an individual sees themselves.
- Ideal self: the person an individual wants to be.
- Incongruence (Rogers): a state in which the self-concept and ideal self are not broadly equivalent, preventing self-actualisation and personal growth.
Humanistic and dominant approaches
| Approach | View of human nature | Explanation of behaviour |
|---|---|---|
| Humanistic | Positive and capable of growth | Free will and self-determination |
| Behaviourist | People as controlled by the environment | Environmental forces |
| Psychodynamic | People as conflicted and driven by unconscious instincts | Unconscious forces |
The flashcards
How to summarize a YouTube video with Revizly
Copy the video link and paste it into Revizly. Revizly reads the captions and gives you a study guide organized by topic, plus flashcards and a practice quiz, in about 30 seconds for a typical lecture.
There’s nothing to watch twice and no prompt to write. Revizly splits the video into the topics the speaker covers, in order, and pulls out the definitions, dates, formulas and key points into a layout you can review in a few minutes.
- Sign in with Google or your email. The free plan covers 2 classes a month.
- Paste the YouTube link of a lecture, a review session or an explainer video.
- Get your study guide, then switch to the flashcards and the practice quiz built from the same video.
Why a study guide beats a plain summary
A paragraph summary tells you what a video was about. A study guide tells you what to remember: key terms with definitions, the must-know points for each topic, memory hooks and comparison tables. That’s what you need the week of the exam.
Most YouTube summarizers are built for anyone who wants the gist of a video: a podcast, a news segment, a product review. That’s useful, but a summary of a 50-minute lecture still leaves you to figure out what’s important and how to test yourself on it.
Revizly is built for one job: studying. The output is organized the way you’d organize your own notes if you had the time, and it comes with flashcards and practice questions from the same video, so you can go straight from watching to quizzing yourself.
What you get from one video
Every video turns into three things you can study from: a study guide organized by topic, a deck of flashcards scheduled with spaced repetition, and a multiple-choice practice quiz with an explanation for each answer.
| Output | What’s in it | When to use it |
|---|---|---|
| Study guide | An outline, key terms, must-know points, memory hooks and summary tables | Right after watching, and the night before the exam |
| Flashcards | One fact per card, scheduled with spaced repetition | A few minutes a day until the exam |
| Practice quiz | Multiple-choice questions with an explanation for every answer | A few days before the exam, without looking at your notes |
How to study a lecture video in under an hour
Watch once without taking notes, read the study guide right after, then close it and test yourself with the flashcards and the quiz. Spread the flashcards over the next few days instead of rewatching the video.
Watch first, don’t transcribe
Typing everything the speaker says splits your attention and leaves you with messy notes. Watch the video at a comfortable speed, pause when something doesn’t make sense, and let the study guide handle the note-taking.
Read the study guide while the video is fresh
Right after watching, go through the outline and the must-know points. This is when the structure clicks: you can see how the topics connect, and anything you missed in the video shows up as a gap.
Test yourself the same day
Close the guide and run through the flashcards, then take the practice quiz. Every wrong answer points to a part of the video worth a second look. Pulling information out of memory is what makes it stick, far more than rewatching.
Let spaced repetition do the rest
Revizly brings each card back just before you’re likely to forget it. A few minutes a day until the exam beats watching the whole lecture again the night before.
Which videos work best
Anything where someone explains a topic: recorded lectures, exam review sessions, explainer channels and conference talks. The video needs captions, either written by the creator or generated automatically by YouTube, which most educational videos have.
Videos without any captions can’t be imported yet. In that case, a tool that transcribes the audio itself, like NoteGPT, is the better choice.
- Recorded lectures your professor posts on YouTube.
- Review videos before a midterm or final, like unit recaps.
- Explainer channels for science, history, psychology or economics.
- Long review sessions up to four hours. For very long ones, split your studying by section.
Limits and pricing
Each video you import counts as one class. The free plan covers 2 classes a month with a preview of each study guide, Essential is $6.99 a month for 20 classes and Premium is $9.99 a month with no monthly limit.
| Free | Essential | Premium | |
|---|---|---|---|
| Classes per month | 2 | 20 | No monthly limit |
| YouTube imports per day | Up to 5 | Up to 20 | Up to 40 |
| Full study guide | Preview | Yes | Yes |
| Flashcards and quiz | Short preview | Yes | Yes |
| Price | $0 | $6.99 a month or $39.99 a year | $9.99 a month or $59.99 a year |
NoteGPT vs. Revizly at a glance
| NoteGPT | Revizly | |
|---|---|---|
| What it’s built for | Summarizing any video, article or document | Studying for exams |
| Account required | No, for basic summaries | Yes, free account |
| Videos without captions | Yes, up to 150 minutes | No, captions are required |
| Output | Summary, key points and transcript | Study guide, flashcards and practice quiz |
| Review schedule | Not mentioned on the summarizer page | Spaced repetition for every card |
| Mobile app with your decks | Not mentioned on the summarizer page | iPhone and Android |
Summarize your first lecture video
Sign in, paste a YouTube link and get a study guide, flashcards and a practice quiz in about 30 seconds. The free plan covers 2 classes a month.
PDF, photos, Word, PowerPoint or a YouTube linkYou can upload right after you sign inFrequently asked questions
Is this YouTube video summarizer free?
You can use it for free. The free plan covers 2 classes a month, and each video counts as one class. You get a preview of the study guide, a short quiz and a few flashcards. Paid plans give you the full guide, deck and quiz.
Do I need an account?
Yes. You sign in with Google or your email so your study guides, flashcards and progress are saved and you can find them on your phone or laptop.
Does it work with any YouTube video?
It works with videos that have captions, either uploaded by the creator or generated automatically by YouTube. Most lectures and educational videos have them. Videos without any captions can’t be imported yet.
How long can the video be?
Up to four hours. Longer videos produce longer study guides with more topics, so for a full review session it helps to study one section at a time.
How long does it take?
About 30 seconds for a typical lecture. Very long videos can take a minute or two.
Can I get flashcards from a YouTube video?
Yes. Every video comes with flashcards and a multiple-choice practice quiz built from the same captions, plus the study guide.
What languages does it support?
Revizly writes the study guide in the language of the video. If you’re studying a foreign language, the language you’re learning is kept as is instead of being translated.
How is this different from YouTube to notes?
It’s the same feature. This page is for students who search for a summarizer; the YouTube to notes page focuses on taking class notes from lecture videos.
Will the summary be accurate?
It’s built only from what the speaker says in the captions, so it follows the video rather than the internet. Auto-generated captions can mishear technical terms, so skim the guide against the video the first time.