Paste a lecture. Get a study app you'll actually use.
Drop a YouTube link — a lecture, a course, an exam-prep talk. In ~30 seconds you get an interactive quiz app, flashcards, and a one-page guide, tuned to what the video is actually teaching. Works offline. Yours to keep.
Not a summary you skim once — a study app you keep.
Generic “summarize YouTube” tools hand you a wall of text you read once and lose. Lecturn gives you a quiz + flashcards + spaced-rep + a one-pager — and downloads them as a single file that opens in any browser. Reopen it the night before the exam, on a plane, with no wifi.
- ✓A self-contained .html quiz app — no account, no server, fully offline
- ✓Remembers your score and reshuffles what you got wrong
- ✓Flashcards export straight to Anki (.csv)
One link in. A whole study pack out.
Paste the link
A lecture, a course, a conference talk, an exam-prep video. The paste box is the whole tool — no setup form, no sign-up to run it.
It reads the lecture
We pull the transcript and infer the level & goal from the content itself — intro survey, grad seminar, or a cert-cram — and tune everything to that read.
Study, offline
Quiz yourself, flip flashcards, print the one-pager, export to Anki. Download the app and study it anywhere, no wifi needed.
Tuned to the video · no “what's your level?” form · Anki-ready
From the margins of real study sessions
“Pasted my 2-hour USMLE lecture before bed, had a quiz on my phone on the subway. The 'review the misses' mode is exactly what I do manually with Anki — except I didn't have to make the deck.”
“I watch a lot of AWS cert videos and never actually retain them. Now every video ends with a quiz I can take offline. Took the practice questions on a flight with no wifi.”
“The fact it figured out my lecture was a grad seminar and made the questions HARD — not the dumbed-down stuff other tools give. It clearly read the actual content.”
“I'm an autodidact, I learn everything from YouTube. The Anki export alone is worth it — finally feeding my deck without typing every card.”
“Turned a whole semester's recorded lectures into quizzes the week before finals. Skimming a summary never made anything stick — testing myself did.”
“It's a real file on my laptop, not another account I have to log into. That's the whole reason I trust it.”
Notes from early Lecturn users.
Free to try every lecture. $5 for the full pack.
Run any lecture free and keep a 5-question quiz app. Want the whole pack — every question + spaced-rep, flashcards + Anki export, the one-page guide, and long videos? That's the $5 study pack (or $9/mo unlimited).
Run a lecture above to pick a pack — your study pack is waiting at the top.
Paste a lecture ↑Questions, answered
Does it work on any YouTube video?+
It works on any video with captions — which is the vast majority of educational content (auto-captions count). If a video has no caption track, we'll tell you and you can try another. Audio transcription for caption-less videos is on the way.
Is the quiz app really offline?+
Yes. The download is a single .html file with everything inlined — no account, no server, no network calls. Open it on a plane, in a library, anywhere. It even remembers your score on that device.
Does it export to Anki?+
Yes — the flashcard deck exports to a standard Anki-importable .csv, so you can feed your existing spaced-rep workflow instead of rebuilding it.
What's free vs paid?+
Free runs any short lecture and gives you a summary + a 5-question preview quiz app, real and offline. The $5 study pack unlocks the full quiz + spaced-rep, the full flashcard deck + Anki export, the one-page guide, and long videos. $9/mo makes it unlimited.
Did it actually read my lecture, or is it generic?+
It reads the real transcript and infers the level and goal from the content itself, then writes questions grounded only in what the lecture covered — so a grad seminar gets hard questions and an intro survey gets foundational ones.
Do you store my videos or data?+
We don't store your video. The study pack is generated on the fly and the downloadable file lives on your device. We only keep the email you sign in with, to let you back in.
We watched the lectures too. We forgot them too.
Lecturn started as a hack the night before an exam: a script that turned a 90-minute lecture into questions we could actually quiz ourselves on. Passive watching doesn't stick — testing yourself does. So we built the study buddy that does the busywork: paste the link, get the quiz, keep the file. No throat-clearing, no account walls, just the study object you needed an hour ago.
— the Lecturn team