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Build your Anki deck from the lecture recording

The recording is the only version of the slides you have, and Anki is where the revision happens. Extract the pages the lecturer showed, export the deck as .apkg, and import it: full-page cards keep the whole slide, occlusion cards cover the text so you can guess it. Every card carries the second of the lecture it came from, so the card you keep missing points back to the explanation.

Open the converterGet it from the Chrome Web Store

Slide extraction runs in the browser; the lecture is never uploaded for it. Occlusion cards need a paid plan.

A real slide with the boxes where the detector found text. The header stays uncovered because it repeats on every slide; tap a box to reveal it.04:12
A real slide with the boxes where the detector found text. The header stays uncovered because it repeats on every slide; tap a box to reveal it.
  • .apkg ready to import
  • Cards keep the lecture timestamp
  • Full-page free, occlusion paid

The review workflow

  1. Open the lecture

    Drop the recording in, or capture the pages from a player tab with the extension when the class only plays online.

  2. Check the pages

    Delete transition frames, merge the splits, crop the camera. A clean deck in the editor becomes a clean deck in Anki.

  3. Export the .apkg

    Pick "Anki deck" for full-page cards, or "Anki image occlusion" for cards that hide the text. The file downloads under the recording's name.

  4. Import in Anki and start

    Double-click the .apkg or use File → Import. Re-exporting the same lecture updates your existing cards in place and keeps the scheduling history.

What lands in your deck

  • Two card kinds exist: full-page cards, free within the first 30 minutes like every other export, and image-occlusion cards on the paid plans.
  • Detection finds where text sits; it never writes card content. A card cannot contain a sentence that was never on screen.
  • Occlusion cards need Anki 23.10+ on the desktop, AnkiDroid 2.17+ or a current AnkiMobile; full-page cards work everywhere.

Pricing

  • Full-page cards are free within the first 30 minutes of every recording, like every other export.
  • Image occlusion comes with the paid plans, the same ones that remove the length limit: $2.99 for 2 full-length recordings, monthly $9.99 with $10 of credit, one-year pass $29, Lifetime $49. Prices include tax.

See pricing

Questions

Do I need an Anki add-on?
No. The .apkg is a standard deck; double-click it or use File → Import. Occlusion cards need Anki 23.10+ on the desktop, AnkiDroid 2.17+ or a current AnkiMobile.
Will re-exporting duplicate my cards?
No. Each card carries an ID derived from the recording, its length and the slide's time, so a re-export replaces the old cards and keeps your review history.
Does a model write the card content?
No. Detection marks where text sits on the slide; nothing is summarized, paraphrased or invented. What is on the card is what was on the screen.
How is this different from the Anki page?
/anki goes deep on the card kinds and the occlusion detection. This page is the study workflow around it: from the recording to a deck you are importing before the exam.
Can I use a Zoom or YouTube recording?
Any file you can open works. For playback-only sources, the extension captures the pages from the tab; a YouTube link alone is not supported.

Turn the recording into your next review session.

Open the converter