YouTube to Flashcards

Turn lecture videos into flashcards

Paste a YouTube lecture URL, let Deckio pull the transcript, and generate flashcards from the explanations, definitions, and examples inside the video. Stop rewatching hour-long recordings when a 10-minute flashcard review covers the same material.

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Free to start — no credit card required.

Paste a lecture URL

Bring in an educational YouTube video.

Load the transcript

Deckio extracts the transcript and turns it into study material.

Generate your deck

Review key points without rewatching the full video.

How to actually use it

01Paste the YouTube URL

Copy the URL of any YouTube video that has captions or auto-generated subtitles. Paste it into Deckio's YouTube input field. Deckio supports standard youtube.com links and youtu.be short links. The video needs to have some form of transcript available — most educational channels and university lecture recordings have this enabled by default.

02Deckio extracts the transcript

Deckio pulls the full transcript from the video automatically. You do not need to find the transcript yourself or copy-paste it manually. The extracted text includes everything the speaker says throughout the video. For longer lectures, this can be thousands of words of raw content that Deckio's AI then processes into structured study material.

03Configure and generate

Choose your card type (Q&A, cloze, or multiple choice) and density level. You can also add custom instructions to focus the AI on specific topics — for example, 'focus on the section about neural networks' or 'only cover the first 30 minutes'. This is especially useful for long lectures where you only need cards from a specific portion.

04Review, edit, and study

Browse the generated cards and edit any that need adjustment. Lecture transcripts sometimes contain spoken filler or tangents, so the AI filters for the educational content, but you may want to fine-tune a few cards. Save the deck to your library for spaced repetition review, or export to Anki (.apkg) if that is your preferred study tool.

Why turn YouTube lectures into flashcards

YouTube has become one of the largest sources of educational content. University channels, independent educators, and course creators publish thousands of lectures covering nearly every academic subject. The problem is that watching a video is passive — you absorb information in the moment but forget most of it within days without active review.

Re-watching a 60-minute lecture to review for an exam is time you could spend on active recall. Flashcards compress the key information from that hour of video into a 10-15 minute review session that is more effective for long-term retention.

The traditional workaround is taking notes while watching, then turning those notes into flashcards manually. That works, but it takes significant time. Deckio automates both steps: it pulls the transcript and generates the flashcards, getting you from video to study deck in under a minute.

This is especially valuable for students who supplement their coursework with YouTube lectures from channels like Khan Academy, Professor Leonard, or Organic Chemistry Tutor — where the content is excellent but there are no built-in study tools.

Who this is for

Students supplementing with Khan Academy
Paste a Khan Academy lecture URL after watching it. Deckio generates flashcards from the transcript so you can actively test yourself on the concepts covered, instead of passively rewatching when exam time comes.
Self-learners studying programming
Turn coding tutorial videos into flashcards covering syntax, concepts, and best practices. Use cloze deletion cards to memorize function signatures, design patterns, and algorithm steps explained in the video.
Graduate students reviewing seminar recordings
Many graduate programs record guest lectures and seminars on YouTube or similar platforms. Convert these into review decks to retain key arguments, frameworks, and findings discussed during the presentation.

What it looks like

Input

Machine learning lecture on gradient descent, loss minimization, learning rate, convergence, and local minima.

Generated cards

What does gradient descent do?

It iteratively updates parameters to reduce the loss function.

Why does learning rate matter?

It controls step size; too large can overshoot, too small can slow convergence.

What is a local minimum?

A point where the loss is lower than nearby points but not necessarily globally lowest.

Rewatching a 60-minute lecture takes 60 minutes and relies on passive learning. Reviewing the same material as flashcards takes 10-15 minutes and uses active recall, which research shows is significantly more effective for long-term retention. Deckio bridges the gap by extracting the study-worthy content from the video automatically.

Questions

Is YouTube input available on free plans?+

YouTube flashcard generation is a Pro feature. It is available on Pro ($6/month), Ultimate ($12/month), and during the free 7-day trial. The trial gives you full access to test the feature before committing.

Do I need to paste the transcript manually?+

No. Deckio automatically extracts the transcript from the YouTube video. You just paste the URL and Deckio handles the rest. The video needs to have captions or auto-generated subtitles enabled.

Does it work for any YouTube video?+

It works for any YouTube video that has a transcript available. Most educational channels, university lectures, and auto-captioned videos are supported. Music videos or heavily visual content without spoken explanations will not produce useful cards.

How long of a video can it handle?+

Deckio can process transcripts from videos of any length. A 2-hour lecture works just as well as a 10-minute explainer. For very long videos, use custom instructions to focus on specific sections.

Can I focus on just part of the video?+

Yes. Add custom instructions like 'focus on the second half' or 'only cover the section about supply and demand'. The AI uses your instructions to prioritize the relevant portions of the transcript.

What card types work best for video content?+

Q&A cards work well for conceptual explanations. Cloze deletion is useful when the speaker defines specific terms. Multiple choice works if you want exam-style practice questions from the lecture content.

Can I export YouTube flashcards to Anki?+

Yes. Cards generated from YouTube videos export to Anki (.apkg) just like cards from any other input type. The export feature is available on Pro, Ultimate, and trial accounts.

Does it work with university-hosted videos?+

Deckio works with YouTube specifically. For videos hosted on other platforms (Panopto, Zoom recordings, etc.), you can download the transcript and paste it as text input, or download the slides and upload as a PDF.

Start with your own notes

Upload a PDF, paste notes, or drop in a YouTube link. Get a first deck in under a minute.

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