Stop rewatching the same lecture five times. Paste the YouTube URL and Askube generates Anki-style flashcards from the video in seconds. Built for students who learn from video. Free to start.
You've been there. A 2-hour lecture. 40 minutes of scrubbing. One concept you still don't understand. You rewatch the same 3 minutes five times. You give up and Google it instead.
What if you could just study the flashcards?
Paste. Generate. Study. Three steps with zero friction.
Drop any YouTube lecture, course video, or tutorial URL.
Select Flashcards. Askube extracts key concepts, definitions, and testable facts from the transcript.
Review your flashcard deck in Askube or ask follow-up questions via chat.
Question on front, answer on back — ready for active recall.
Q
What is the action potential threshold in neurons?
A
Approximately −55 mV. When the membrane potential reaches this level, voltage-gated sodium channels open and an action potential is triggered.
Q
What is the difference between absolute and relative refractory periods?
A
Absolute: no action potential is possible regardless of stimulus strength. Relative: a stronger-than-normal stimulus can trigger an action potential.
Q
What does the sodium-potassium pump do?
A
Moves 3 Na⁺ ions out and 2 K⁺ ions in per cycle, maintaining the resting membrane potential of −70 mV.
Q
What is synaptic plasticity?
A
The ability of synapses to strengthen or weaken over time in response to activity — the cellular basis of learning and memory.
Sample from a 45-min neuroscience lecture — 18 cards generated total.
More than flashcards — the full study toolkit, from a single URL.
Every flashcard follows the active recall format — question on front, answer on back — optimised for retention.
After generating flashcards, ask the video any question and get answers from the transcript.
Switch to study guide mode for structured notes with headings and key points from the same video. Try it →
University lectures, Coursera courses, Khan Academy, YouTube tutorials, TED Talks — any public video with captions.
Copy the deck or export it for use in your own study workflow.
Everything students ask before trying Askube.
Educational content works best — university lectures, online courses, explanatory videos, and tutorials. The more structured the video, the more precise the flashcards.
It depends on the content density. A 20-minute lecture typically yields 10–25 flashcards covering the core material.
Yes. The free plan includes 50 credits per month — enough for 10–15 lecture summaries or flashcard sets. No credit card required.
Yes. After generating flashcards, you can switch output type to Study Guide or chat with the video to get a written summary as well.
Free plan — 50 credits/month, no credit card required.